Step 1

Preheat oven to 350 degrees F and grease a mini or standard size muffin tin with nonstick spray.

Step 2

Place all ingredients into a blender. Blend until very smooth, stopping to scrape down the sides of the blender and/or using the stick that came with it to move the ingredients around if needed.

Step 3

Fill muffin cups about 1/2 full using about 1/4 cup batter in each. Top with chocolate chips, if using.

Step 4

For regular muffins: Bake 22-24 minutes or until a cake tester inserted into the center comes out cleanly.

Step 5

For mini muffins (or a donut pan): Bake 14-16 minutes or until a cake tester inserted into the center comes out cleanly.

Step 6

Let cool for 5-10 minutes in the pan, run a knife around the edges, and carefully transfer to a wire rack to cool.