Preheat the oven to 170°C.
Mix whole wheat flour, almond flour, and baking powder in a bowl.
Add olive oil, erythritol, and egg, and mix well.
Add finely chopped yakgwa (use low-sugar yakgwa) to the dough and mix.
Shape the dough into balls and place them on a baking sheet.
Bake in the oven at 170°C for about 15 minutes.
Let cool completely before eating.