(from smitten kitchen)
1 cup whole wheat flour
1 cup all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon salt
1 tablespoon cinnamon
1/2 cup unsalted butter, at room temperature
1/2 cup granulated sugar
1/2 cup dark brown sugar, packed
1 large egg, lightly beaten
1 cup buttermilk
2 large apples, peeled, cored, and coarsely chopped
~ preheat the oven to 450°F. prepare 18 muffin cups with papers
~ mix together the flours, baking powder, baking soda, salt, and cinnamon
~ in a separate bowl, cream the butter and add the granulated sugar and 1/4 cup of the brown sugar. add the egg and mix well.
~ mix in the buttermilk gently, being very careful not to overmix.
~ stir in the dry ingredients and fold in the apple chunks.
~ fill muffin cups, sprinkling the remaining 1/4 cup brown sugar on top.
~ bake for 10 minutes, turn the heat down to 400°F, and bake for an additional 5 to 10 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
~ cool the muffins slightly before removing from the pan. then cool the remainder of the way on a rack.