Preheat the oven to 180°C (356°F).
Combine whole wheat flour, baking powder, and salt in a bowl and mix well.
Add coconut oil and rub it in with your hands until the mixture becomes crumbly.
Pour in soy milk and vanilla extract, then mix to form a dough.
Roll out the dough to a thickness of 2 cm and cut into desired shapes.
Place on a baking tray and bake for 20 minutes.