Preheat oven to 375 degrees F. Line a 12-cup muffin tin with liners or grease with non-stick cooking spray. Set aside.

Wet Ingredients: In a medium bowl, stir together the oats, applesauce, milk, egg, vanilla, butter and sugar.

Dry ingredients: In a large bowl, mix the flour, baking powder, baking soda, cinnamon, salt, and cranberries or raisins or chocolate chips.

Combine: Make a well in the center of the dry ingredients and pour in the applesauce mixture. Stir just until combined.

Bake: Divide batter evenly between muffin cups. Bake for 15-20 minutes, or until a toothpick inserted in the center comes out clean. Don't over-bake or the muffins will be dry. Remove them to a cooling rack to cool completely.