1/2cupchocolate chips or mix-in of your choicee.g., nuts, apples, cinnamon, blueberries, etc
Preheat the oven to 400 degrees F. Grease a 12-cup muffin tin (these muffins tend to really stick to liners)
Place all of the ingredients except for the chocolate chips in a blender. Process for about a minute or until smooth. Stir in the chocolate chips. Pour the batter into the muffin tins just slightly more than 3/4 full. Bake for 15 minutes or until golden.
Let the muffins sit in the muffin tins for a couple of minutes before transferring them to a wire rack to cool.