Preheat the oven to 180C (160C fan, gas 4) / 350F. Begin by mashing the banana in a bowl.
Next add the protein powder, baking powder, milk and oats and combine.
Fold through 2/3 of the blueberries.
Pour into an ovenproof ramekin and top with the remaining blueberries. Bake for about 30 minutes, until risen, golden and just set in the middle (a knife should come out mostly clean). Allow to cool for a few minutes before eating.Note: To make these in an air fryer, bake at 180C for 15 to 18 minutes until risen and set in the middle. Check at 15 minutes.
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Notes
Step-by-Step Photos: My blog post includes helpful step-by-step photos to help guide you through making this recipe.Substitutions & Variations: I have included a list of these in the post above.To Store: Store in an airtight container in the fridge for 3 to 4 days. Reheat in the microwave.To Freeze: Freeze for up to 3 months in an airtight container.Tip 1: To make in an air fryer, bake at 180C for 15 to 18 minutes. Check at 15 minutes.Tip 2: If you are gluten-free, make sure you have certified gluten-free oats and protein powder.Tip 3: Make sure to use ripe bananas as they will be sweeter.