Applesauce Muffins

0 Preheat your oven to 400F. Line a 12-cup muffin tin with paper liners or grease the muffin cups with non-stick spray.
1 In a large mixing bowl, whisk together the all-purpose flour, whole wheat flour, baking soda, baking powder, salt, cinnamon, nutmeg, and ginger until well combined.
2 In a separate mixing bowl, whisk together the granulated sugar, brown sugar, applesauce, vegetable oil, eggs, and vanilla extract until smooth and creamy.
3 Add the wet ingredients to the dry ingredients and gently fold together with a spatula until just combined. Be careful not to overmix; the batter should be slightly lumpy.
4 Divide the batter evenly among the prepared muffin cups, filling each about 3/4 full.
5 In a separate bowl mix your ingredients for the crumb topping.
6 Sprinkle the crumbs over the muffin mixture.
7 Put the muffins in the oven and bake 5 minutes at 400 degrees. Reduce the temperature to 350 degrees and continue baking for 10-14 minutes, or until the muffins are done. 
8 Let the muffins cool 1-2 minutes in the pan, then transfer to a wire rack to cool completely.