Combine whole wheat flour and low-sugar soy flour in a bowl and mix.
Add a low-sugar sweetener like stevia, baking powder, and salt. Mix evenly.
Add egg, unsweetened milk, and olive oil, then knead into a dough.
Shape the dough into balls and place them on a baking pan.
Bake in a preheated oven at 170°C (338°F) for 15-20 minutes.