recipe from smittenkitchen.com
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 temp.
1/2 cup granulated sugar
3/4 cup packed brown sugar, divided
1 cup buttermilk or plain yogurt
3 apples, peeled, cored, and chopped small
Preheat oven to 450. Grease 18 muffin cups and set aside. Mix together flours, baking powder, baking soda, salt and cinnamon and set aside. In a mixing bowl, cream the butter. Add sugar and 1/4 cup of the brown sugar. Beat until fluffy scraping down the sides of the bowl as needed. Add the egg and mix well. Mix in the buttermilk gently so it doesn't start to curdle. Stir in your dry ingredients and fold in your apples.
Pour it all into your muffin cups. Sprinkle on the remaining 1/2 cup brown sugar. Bake at 450 for 10 minutes, turn down the heat to 400 and bake for another 5-8 minutes or until toothpick comes out clean. Cool them a little before serving, those apples get super hot!