The pastries must be weighed down, regardless of if using air fryer or oven. Place some baking/parchment paper on top of the pastry cases, before laying something heavy on top, such as a heavy baking tray. For the air fryer, ensure minimum amount of paper is used, as paper moving about can be a fire hazard. Place something like a crisper tray on the bottom of the air fryer basket first. And add something heavy to hold down the pastries, like a shallow casserole dish.
For regular ovens, bake the pastry cups in the centre of the oven, pre-heated to 200°c, 180°c fan oven, 400°f, Gas Mark 6, & bake for 12 - 15 minutes until golden and baked through.
For large, open-front air fryers, bake like in a regular oven, with a 9-cup cupcake tray or silicone cupcake case(s).
For small basket air fryers, ensure there is something on the bottom of the basket (like a small drip tray), before placing the upside-down cupcake tray on top. Place a small amount of baking/parchment paper on top & hold in place with something heavy like a shallow casserole dish (**Do not let any paper move as it can be a fire hazard in air fryers). Bake @ 200°c, 180°c fan oven, 400°f, for 12-15 minutes. The cases should be golden or deep golden in colour, and a bit lighter on the sides. ***Do not open the air fryer part-way through baking, even if your air fryer beeps to get you to turn the food. **Preheat the air fryer if your machine requires this.