Cube the butter in small pieces about 1cm or ⅓” and this smaller surface area will result in the butter softening faster. While the butter softens, remove your eggs if stored in the fridge and allow to also come to room temperature.
Mix the flour, baking powder & salt in a medium mixing bowl till combined. **If using Plain/All Purpose Flour, be sure to use the 2 amounts of baking powder**.
Add in the softened cubed butter and mix briefly till coated in flour, before using a pastry blender/pastry cutter, 2 butter knives, or your fingertips, to 'cut the butter in'. Work the mixture until medium sized breadcrumb consistency. See video for reference.
Now add in the garlic, rosemary & smoked paprika, (I used Aldi Garlic Mix in place of the garlic & rosemary individually), and mix till incorporated. Reserve about ⅓ (50g/1¾ oz) of the cheese for topping, before adding in the remaining 2/3 to the dry ingredients.
Prepare the wet ingredients by cracking 2 eggs into a jug and whisking before adding in the milk, until a level of 300ml (about ½ pint, 10 fl oz). Depending on exact sizing of the eggs, you might not need all of the 150 ml milk or more. if more, just top up with some milk and whisk till combined. Reserve 2 tbsps of the egg/milk mixture for egg-wash.
Make a well in the centre of the bowl of dry ingredients and very gradually add in the wet mixture, just enough until the mixture starts to come together. Use your hands now to make a very slightly sticky dough, knead for 15 seconds in the bowl and form into a ball then a disc shape.