Instructions

  1. FOR MUFFINS: In a large bowl, combine the flour, sugar, baking powder, cinnamon, baking soda, salt, allspice, and nutmeg.
  2. In another bowl, beat the eggs, sour cream and butter together.
  3. Stir the egg mixture into the dry ingredients, just until moistened (do not overmix).
  4. Fold in the diced apple into the batter.
  5. Fill greased or lined muffin cups one-third full.
  6. FOR TOPPING: In a bowl, combine the nuts, flour, sugar, cinnamon, and nutmeg. Cut in the butter until mixture resembles coarse crumbs.
  7. Sprinkle about two-thirds of the topping over the batter in the cups.
  8. Top with remaining batter and then sprinkle the remainder of the topping mix over each muffin.
  9. Bake at 375F for 20-25 minutes or until toothpick comes out clean.
  10. Cool for 5 minutes before removing from pans to wire racks to cool completely.