Preheat oven at 350F or 180C

Blend the oats in a food processor or kitchen blender until fine

Mix the oats with the protein powder and the cinnamon

Add in the peanut butter and mix very well

Add the other ingredients to the mixture

Pour batter into an oven dish or muffin pan (like I did)

Put in the oven for around 15 minutes, try with a tooth pick if the cakes are ok (when it comes out clean it's ok)