Preheat your oven to fan 180C
Mix together the banana, oats, protein powder, baking powder and milk in a 9x6 baking dish
Mix in half of the chocolate chunks, then sprinkle the other half over the top alongside the peanuts
Bake in the oven for 35 minutes
Let the dish cool for 5-10 minutes before drizzling with peanut butter and slicing up
Serve up with yoghurt and extra peanut butter if desired
Store the remaining portions in an airtight container in the fridge
Microwave your portion for 1 minute when you want it, or have it cold for an oat bar vibe
