Place all ingredients in a blender. Blend everything on high for a minute or two until a smooth batter forms.
Place 10 muffin cups into a muffin tin and pour the batter divided evenly between the cups. Sprinkle the tops with extra oats and gently press them down (sprinkle a little sugar and cinnamon to the tops if you’d like).
Bake for about 25 to 30 minutes until a toothpick comes out clean. Remove from the muffin tin and allow them to cool a few minutes before serving. Store refrigerated or frozen.