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Chocolate Orange Brownie Tower

stack of brownies with hazelnut spikes and fondant orange slices on a green plate on a pale background with candle, plates, forks and party poppers

Chocolate Orange Brownie Tower

The Ultimate Celebration ‘Stack Cake’

By Caro

Using my new Chocolate Orange Brownie recipe, as well as my Browned Butter Hazelnut Brownies, I created the ‘Chocolate Orange Brownie Tower’. This is the ultimate celebration cake involving a ‘brownie stack’, that anyone can make.

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Chocolate Brownies

Chocolate Orange Brownies, are my new flavour of proper chocolate brownies. Now the reason I say ‘Proper Brownies’ is I see too often recipes claiming to be brownies, but are simply just chocolate cake squares, with basic cake instructions & no soft gooey centre. Love them or hate them, brownies should not have a sponge texture through out & must have a ‘paper crust’ to the top.

They are by no means pretty in the conventional meaning of the word, but if they have the true characteristics of a ‘proper’ brownie, (as described), these will be visible and people will be drooling – enter drooling emoji. And going by feedback on my original Chocolate Brownie recipe, this is all true. (See Photo).

Chocolate Orange Brownies

Key To Perfect Brownies

Now getting brownies right is by no means hard, and only takes a few minutes more of gentle mixing & getting out of the oven a bit sooner than if you were making a chocolate cake or tray bake. The secret is whisking the sugar & eggs for 5 minutes till mousse like, very pale in colour & with a noticeable increase in volume size. So after this you don’t want to mix in as normal.

The best way is to fold the other ingredients in the shape of an ‘8’. As if you were writing the number 8; where the spatula is your pen & the batter your paper. And in doing so, only until all the flour is no longer visible. Over mixing can also ruin the brownie texture you are looking for.

For experienced bakers, you can skip to the Recipe Card – , that you can also print. Click below:

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A Note On Brownie Ingredients

Cocoa & Chocolate

There is cocoa powder in the chocolate brownie & I use inexpensive dark (bitter) chocolate for the gooey centre chunks & it works well for these, with milk/semi-sweet chocolate melted & added to the batter. (Lidl or Aldi cheapest chocolate is fine for this). Note the brownies are very rich & go nicely with some ice-cream or whipped cream! I also added orange extract, & a packet of chocolate orange & fudge pieces from Aldi. Now they don’t have they all the time in my local store, but you could also chop some Terry’s Chocolate Orange or even just use regular plain/bitter chocolate, just like my other brownie recipes & even increase the orange extract.

Note too, for this Brownie tower, I used one batch of Chocolate Orange Brownies, and one batch of my Browned Butter Hazelnut Brownies. The recipe below details how to make the orange brownie, as well as how to make some caramel for making Hazelnut Spikes. These sugar decorations elevate the brownie tower, & could easily be personalised to your particular celebration.

Browned Butter hazelnut Brownies

A Note On Tin Size

I recommend a baking tin approximately 23 x 23 cm (9″ square). Don’t use too small a pan/tin or it will take too long to cook because of the increased depth. I wouldn’t recommend going any smaller than a 20x20cm/8″ square tin. You want a dish where the sum of the length + width is about 46 cm (18″), and not much more, or they will be too thin and you run the risk of over-baking too. Example: a 20x25cm (8×10″) baking tin (20+25=45cm, or 8+10″=18″).

Constructing The Brownie Tower

Construction of the brownie tower could not be easier, & just involves stacking. Just try & use flat pieces or turn some pieces upside down. See photo below.

Making Sugar Decorations

Making the sugar-work decorations is optional, but easy to do. Just a bit messy! The photo collage shows the difference a little more sugar work makes. You are making some caramel to coat hazelnuts which you placed on bbq skewers, sometimes called hazelnut spikes. Getting the hazelnuts on the skewers without them splitting, is the only difficult part here.

With the left-over caramel, I just played about & made some shapes. Drizzling the caramel on baking/parchment paper, I made some lines & then went back over in an adjacent angle. You can do anything you like really, just need to be quick as it does harden really quickly. I did have to gently heat the caramel when it was not ‘dippable’!

And what I will call the ‘caramel floss’ was just left over pieces of fine strands of caramel, that collected on the paper, when the hazelnut spikes where suspended & setting (see photo 9 in the Recipe Card).

Caramel Video –

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Fondant Orange Segmants

Now a final touch I added was some fondant orange slices I had actually made earlier in the year for my youngest son’s birthday cake (that was a chocolate and orange Ferrero Rocher cake that I need to write up). I don’t have time just now to write up a tutorial on this, (I did lemon ones before and just used the same technique). I will add a photo collage of the stages and some detailed instructions in a later tutorial.

Now on to the recipe –

Chocolate Orange Brownie Tower

With Hazelnut Spikes

Chocolate Orange Brownie Tower With Hazelnut Spikes

stack of brownies with hazelnut spikes and fondant orange slices on a green plate on a pale background with candle, plates, forks and party poppers
Using my new Chocolate Orange Brownie recipe, as well as my Browned Butter Hazelnut Brownies, I created the 'Chocolate Orange Brownie Tower'. This is the ultimate celebration cake involving a 'brownie stack', that anyone can make.
Caro @ Caroline’s Easy Baking Lessons
Cook Time 25 minutes
Serving Size 32 pieces


  • Scales or measuring cups
  • Measuring Spoons
  • Small Cooking Pot
  • Wooden spoon
  • Microwave safe bowl to hold chocolate
  • Microwave or use stove top for melting
  • Spoons (several)
  • Mixing bowl
  • Sieve
  • Stand/Hand-held Mixer
  • Plastic/silicone baking spatula
  • Baking tin (approximately 23 x 23 cm (9" square). Don’t use too small a dish or it will take too long to cook. You want a dish where the sum of the length + width is about & not to exceed 46 cm (18") or they will be too thin).
  • Spray, lining paste or butter for greasing
  • Baking/parchment paper
  • Scissors & pen/pencil (optional)
  • Timer
  • Wooden Cocktail stick
  • Cooling rack
  • Wooden BBQ skewers
  • Heavy bottomed pot (not non-stick)


For The Orange Brownies

  • 185 grams Butter (unsalted & cubed – 1 stick + ⅓ cup or 6.5 oz. )
  • 185 grams Milk chocolate (6.5 oz semi-sweet)
  • 200 grams Granulated sugar (1 cup, 7 oz)
  • 75 grams Light Brown Sugar (⅓ cup, 2½ oz OR 275g/9¾ oz/1⅓ cup Golden Granulated Sugar)
  • 3 Medium Eggs (US Large)
  • 85 grams Plain Flour (⅔ cup, 3 oz All Purpose Flour)
  • 40 grams Cocoa Powder (⅓ cup, 1½ oz)
  • 100 grams Mini Chocolate Orange & Fudge Pieces (From Aldi's baking range, see before Recipe Card. Alternatively 3½ oz Orange Chocolate or plain/bitter chocolate & increase Orange extract by 1 tsp)
  • 1 tbsp Orange Extract (I use Morrison's & Sainsbury's Sicilian Orange Extract. If not using orange chocolate, increase extract to 4 tsp).

For The Caramel Decorations

  • 350 grams Granulated Sugar
  • 80 ml Cold Water
  • 30 ml Lemon Juice
  • 1 Packet Hazelnuts, whole (at least 24 hazelnuts would do, or any other similar shaped nut)

For Browned Butter Hazelnut Brownies

  • See recipe for ingredient list (See Notes for recipe link)


Prepare The Ingredients & Tin

  • Break up the 185g/6½ oz milk/semi-sweet chocolate & microwave in 30 second bursts, stirring well in-between each, until fully melted. Leave to cool while you gather the other ingredients. Alternatively, melt in a bowl over a pan of barely simmering water.
  • Weigh out the flour & cocoa through a sieve into another bowl (not the main mixing bowl).
  • Grease the baking tin & place baking paper/parchment inside it. See Photo 1 above for how to cut your paper to fit. I usually hold in position with baking spray or Cake Lining Paste. This time I used Frylight Oil spray (see notes).
  • Next whisk the eggs & sugar with a hand/stand mixer for approximately 4 – 5 mins, on medium to high speed. It must become thick & creamy, paler in colour & increased in volume. This is the key to these gooey brownies. See from Photo 2 above how thick it is, and it will leave a trail that doesn't immediately vanish. You can also see my quick video on Whisking Eggs & Sugar To The Ribbon Stage.
  • Gently fold in the cooled butter, melted chocolate & Orange Extract, with a plastic/silicone baking spatula & do so in the shape of a number 8. Think of your spatula as a pen & the mixture your paper. Mixing too vigorously will undo all the whisking from earlier. Mix just until all mixed in and no more. Then See photo 3 above.
  • Next re-sieve the flour & cocoa mixture, into the batter. Mix it in again like before until no flour is visible, scraping down the sides too. Fold in the Mini Chocolate Orange Fudge pieces, (or roughly chop chocolate, see notes & before recipe). See Photo 4 above.
  • Pour the brownie batter into the prepared pan & level off if required. See Photo 5 above. Leave to sit so that it will form a crust later. (Leave at least 10 mins). Heat up the oven to: 180°c/160°c Fan oven/350°f/Gas mark 4 while the brownie sits.

Bake The Brownies

  • Bake for about 18 – 25 minutes, turning the tray if needed, after half-way through. The top will have formed the crust, (see photo 6 below). Testing with a wooden cocktail stick, the outer edges produce a clean stick, whilst the centre is a little moist with just a few crumbs. This is what we want.
  • Leave the brownies to sit to cool down in the tin for 5 minutes. Then transfer via the paper, to the cooling rack to cool down completely before cutting into 16 squares. See tips in notes for cutting. For making the tower, I prefer to leave out at room temperature, still in the tin, overnight with cling film/plastic wrap on top about 1 hour later. **Note I used 2 batches of brownies for the Brownie Tower.

To Make The Hazelnut Spikes

  • Carefully place a wooden BBQ stick into the side of a hazelnut. It needs to be far enough in so that the nut doesn't fall off, but not too far that it breaks the nut.
  • Prepare an area to work at, line with lots of baking/parchment paper as the caramel is very sticky. Also the hazelnut spikes need to hang off the end of a table or counter/worktop. So you will need paper on the floor too, to catch the excess, that you can still use. As well as something like books or pegs/clips to hold the bbq stick down & from rolling.
  • Also prepare your stove & have your ingredients ready, as well as a small dish of water & a small brush. This is for in case you see any crystals on the sides of the pan. If you do, simply brush some cold water on the sides to stop the crystallization spreading into the caramel. Also have a trivet ready at the other work area for placing your pot of hot caramel down.
  • Begin by adding the sugar to a heavy bottomed pot that is not non-stick. Then add in the water & do not be tempted to mix. This is key to caramel making. Next add in the lemon & again no mixing. Turn on the heat to med-high setting & then add a sugar/candy thermometer if using.
  • Let the sugar come to a boil with no mixing at all. You can occasionally shake the pan a little, just to make sure the sugar is evenly spread on the bottom of the pan
  • Here are the stages that the sugar mixture goes through. The sugar will start to get moist and then begin to bubble gently around the edges. If there are some clumps of sugar in the centre of the pan – you can shake the pan a little (see video & Photo 7).
  • Next it will start boiling all over the surface: it will be gentle at first, with steam & you will be able to hear it. Note the colour at this point – dip a small spoon in and it will be a clear colour.
  • Let the sugar mixture rapidly boil. Keep it boiling & it will start to smell, kind of like honey.   Colouring will be starting & the bubbles will be wider & have a burst-like appearance. Keep watching & when you notice it starts to colour, check with a spoon for comparison.
  • Let it colour at bit more -I like to aim for almost coming to a medium amber colour.  See Photo 8. Remember it will colour & caramelize more once off the heat so you want to take off just before it’s ready.   If using a sugar/candy thermometer, the temperature will be about 172°c/341°f (after it get’s to 160°c/320°f keep a very close eye and be ready to remove). Turn off  the heat & remove from the stove. 
  • Working quickly, dip the hazelnuts that are on a bbq stick, into the caramel to coat completely. Then move to the area you have prepared to hang them & hold in place with a book for example. Let the caramel drip down & set in a 'spike' shape. See Photo 9 below. You can also use a spoon to help, but the caramel will harden on this. Be very careful with the dipping as the caramel is very hot, & also the hazelnuts sometime fall off the stick.
  • Dip as many. hazelnuts as you can and whenever the caramel is hardening & making it too difficult to dip, pop back on the stove top & heat gently till ready for dipping. If using a spoon, warm this in the pot too, & any hardened caramel on the spoon will slide off.
  • With left-over caramel, do any shapes or designs you like, on top of some baking/parchment paper. See Photo 10 below. Once done, steep the pot, with some boiling water and this will help cleaning up later.
  • Once the hazelnut spikes are set, I stand the bbq sticks up in an extra large jug till ready to use. You can cut off the ends to whatever length you want. There will be extra fine strands of caramel formed on the paper you had on the floor. These can be scrunched together and used too.

Construct The Brownie Stack/Tower

  • For the Brownie Tower in the photos, I used 2 batches of brownies, (32 squares, minus a few the boys pinched) and did one batch in this orange version and one batch in the Browned Butter Hazelnut Brownie. But the original Chocolate Brownie recipe would be good too.
  • Pick a suitable large plate, cake stand or cake board & basically just place the brownie squares down & stack on top of each other, working your way up, and using less on each row, as you progress upwards. Keep the best ones for the front & top, and turn around or upside down, if it makes it more level, for easier stacking. The good thing is, it doesn't need to be perfect, and you can start over again if not happy. You could also use cocktail stick if needed, but just be careful not to break the brownies.
  • Carefully remove the bbq sticks from the hazelnut spikes, one at a time, & position on random levels of the brownie tower. You can also turn the hazelnut spike upside down & insert into a brownie, to hold in position.
  • I also used some designs I made on paper, and just broke them up by hand & positioned one on the top of the tower. (See Photo 10 above and Photo 13). The extra fine strands of caramel, I also scrunshed up and placed on the tower.
  • As time is pushing on, I can't do a step by step tutorial on the process for making the fondant oranges. But below is a collage of the process, which really isn't that hard to make.



Caramel making video
Go to the recipe for the Browned Butter Hazelnut Brownies
Go to the recipe for original Proper Gooey Brownies.
More chocolate recipes
For more on caramel making & problem solving, go to my Caramel Sauce Recipe.
*Type of chocolate can be adjusted to taste, just note however, that these brownies are very rich, so both chocolate being dark/bitter chocolate would maybe be too much. Also if using half dark/bitter chocolate, there is no need for higher cocoa content chocolate.
*Can be made gluten free, see main recipe post.
*Don’t skip the 5 minute mixing of the eggs and sugar stage, as this is key for gooey brownies.
*Brownies can be cut easier if left overnight at room temperature to cool. Alternatively, place the brownies, still in the tin, into the fridge to speed up cooling, about 15 minutes after coming out of the oven. Once cooled completely, remove with the paper & cut with a warm sharp knife and wipe it in-between each cut. 

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DIFFICULTY LEVEL: easy with guidance

Rating: 3 out of 5.

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  1. 5 stars
    This is such a great brownie recipe and only one I use. The instructions are brilliant with tutorial how to make the fondant orange segments. Thank you so much. My son’s favourite and has to have it as a birthday cake

    1. Thank you so much for the lovely feedback, it means a lot. And I am so pleased you son enjoys the recipe for his birthday.

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