Preheat the oven to 180°C (356°F).
Combine whole wheat flour, baking powder, and stevia in a bowl.
Add cold butter and mix with your hands until crumbly, like streusel.
Add milk and egg, and knead the dough until it comes together.
Divide the dough and shape into rounds.
Place the dough on a baking sheet lined with parchment paper.
Bake in the oven at 180°C (356°F) for 20 minutes.