Combine flour, sugar, baking pwdr and apple pie spice.
Combine lowfat milk, apple, margarine and egg; pour into dry mix.
Stir till combined - don't overmix.
Fill each c. about 2/3 full.
Topping & Baking - Combine topping ingredients, stir till thoroughly combined; sprinkle equal amount of topping over each muffin, bake for 15 to 20 min - or possibly unitl toothpick comes out dry.