Preheat oven to 350 degrees. Either put cupcake liners into a muffin pan, or use a silicone muffin pan.
Mix all the ingredients together.
Scoop 1/4 cup of batter into each muffin cup, which makes 12 muffins. Optional: sprinkle some raw oats on top of the batter before putting the muffins into the oven.
Bake for 25-30 minutes. Let cool for 10 minutes before transferring to a cooling rack. Enjoy!