Mix almond flour, baking powder, and salt in a bowl.
Add cold unsalted butter cut into small pieces and blend with your hands until crumbly.
Add eggs, unsweetened milk, and zero-calorie sweetener (such as erythritol), then mix until a dough forms.
Shape the dough into a ball, wrap in plastic wrap, and chill in the refrigerator for about 30 minutes.
Roll out the dough flat and cut into triangles.
Bake in a preheated oven at 180°C (356°F) for 20 minutes.
Let cool and enjoy.