Preheat the oven to 180°C.
Combine cake flour, baking powder, stevia, and salt in a bowl.
Add cold butter and rub it in with your hands until the dough becomes crumbly.
Lightly mix in the milk and egg.
Add yellow cheese and mix until evenly incorporated.
Roll out the dough to a thickness of 2cm and cut it into triangles.
Place them on a baking tray and brush with beaten egg.
Bake in the preheated oven for 18–20 minutes.