My only piece of advice would be to not let your streusel sit out while your fixing the rest of the recipe- my butter got a little too softened and didn't quite give the "streusel" effect after baking. But other than that, this recipe is deLISH!!!
2 1/2 cups all-purpose flour
2 cups sugar
1 tablespoon pumpkin pie spice
1 teaspoon baking soda
1/2 teaspoon salt
1 cup canned or cooked pumpkin
1/2 cup vegetable oil
2 cups finely chopped peeled apples
1/4 cup sugar
2 tablespoons all-purpose flour
1/2 teaspoon ground cinnamon
4 teaspoons cold butter or margarine
In a bowl, combine the first five ingredients. In another bowl, combine the eggs, pumpkin and oil; stir into dry ingredients just until moistened. Fold in apples. Fill paper-lined muffin cups two-thirds full. In a small bowl, combine sugar, flour and cinnamon. Cut in butter until crumbly. Sprinkle over batter.
Bake at 350 degrees for 35-40 minutes or until golden brown. Cool for 5 minutes before removing from pans to wire racks.