Peel apples and grate in the food processor using the grater attachment
1
combine dry mix ingredients and whisk thoroughly
2
mix together wet ingredients, including flax egg, and stir into dry mix. do not overmix. fold in apples. use large white scoop to fill muffin papers.
3
combine streusel ingredients and top each muffin with 2 tablespoons of mixture. bake at 425 for 5 minutes then reduce heat to 350 and bake for 15 minutes more. allow to sit at least 10 minutes to set