Combine flour, baking powder, and salt in a bowl.
Cut cold butter into small pieces and mix with your hands until crumbly.
Add milk little by little and knead into a dough.
Wrap the dough in plastic wrap and let it rest in the refrigerator for 30 minutes.
Roll the dough thin with a rolling pin and cut into desired shapes.
Line a baking tray with parchment paper and place the dough pieces on top.
Bake in a preheated oven at 180°C for 15 minutes.