These high protein muffins are great to indulge your muscles and not your waistline!
Preheat oven to 400 degrees F (200 degrees C). Grease 12 muffin cups or line with paper muffin liners.
Combine flour, protein powder, stevia, 3/4 cup chocolate chips, cocoa powder, and baking soda in a large bowl.
Whisk egg, yogurt, milk, vanilla extract, and coconut oil in another bowl until smooth; pour into chocolate mixture and stir until batter is just blended.
Fill prepared muffin cups 3/4 full and sprinkle with remaining 1/4 cup chocolate chips.
Bake on the middle rack, in a preheated oven, until a toothpick inserted into the center comes out clean, about 17 minutes.
Cool in the pans for 10 minutes before removing to cool completely on a wire rack.