01 -
Turn your oven on to 180°C (350°F). Lightly grease some paper muffin liners and set them in a tin to keep them steady.
02 -
Smash the banana in a big mixing bowl until smooth. Stir in yogurt, egg, syrup, vanilla, and just a little salt. Blend everything until itʼs all combined and silky.
03 -
Add protein powder, baking powder, and oat flour into the wet mixture. Slowly pour in milk, starting with about 3 tablespoons, as you mix. Add more milk until the batter looks right—thicker powders like casein or vegan blends might need that extra liquid.
04 -
Stir in the chocolate pieces carefully so theyʼre spread through the batter evenly.
05 -
Spoon the batter into your muffin liners, filling each one about ⅔ of the way. Add some extra chocolate chips on top if you like.
06 -
Pop the tray in the oven for 20 to 25 minutes. Pull them out once a toothpick stuck in the middle comes out clean. Donʼt let them cook too long—they might dry out.
07 -
Move the muffins to a rack and let them rest for 15 minutes. Then theyʼre ready to enjoy.