Preheat the oven to 180 ° C.
Mix peanut butter, stevia and egg until a homogeneous mixture is obtained.
Divide the dough into 12 balls and place them on a baking dish covered with a sheet of parchment paper.
Flatten with a fork making a cross motif.
Arrange some dark chocolate chips on top of the cookies.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.