Preheat oven to 375 degrees.
Peel and core apple and chop in food processor with 1/4 cup of juice, to make 1 cup of applesauce.
Stir together the oatmeal, applesauce, juice, egg, vanilla and oil. Set aside.
Stir together the flour, baking powder, baking soda and cinnamon. Make a well in the center, and add the applesauce mixture. Stir until well combined, but do not over beat.
Add Cranberries. Spray muffin pan with non-stick spray and spoon mixture into pan, filling cups about 2/3 full.
Bake 15-20 minutes, or until a toothpick inserted in center comes out clean.
Cool on a rack for 15 minutes before removing muffins.
Makes 12 muffins
