Mix the wet ingredients

• Mash the bananas in a mixing bowl.
• Add the eggs and peanut butter and mix until smooth.

Add the dry ingredients

• Add the oat flour, baking powder and cinnamon.
• Stir until just combined.

Fold in the blueberries

• Gently fold the blueberries into the batter.

Fill the muffin pan

• Line the muffin pan with muffin liners.
• Spoon the batter into the liners.

Bake

• Bake at 180 °C (350 °F) until a skewer comes out clean.

Cool and store

• Let the muffins cool slightly in the pan.
• Transfer to a wire rack to cool completely.
• Store in an airtight container.