Makes about 12
1 cup whole wheat flour
1 cup sr flour
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon salt
2 tsp cinnamon
1/2 cup butter, at room temperature
1/2 cup granulated sugar
1/2 cup dark brown sugar, packed, divided
1 large egg
1 cup (8 ounces) buttermilk or yogurt
2 large apples, peeled, cored, and coarsely chopped
Preheat the oven to 200c
Mix together the flours, baking powder, baking soda, salt, and cinnamon, and set aside. In a separate bowl, cream the butter and add the granulated sugar and 1/4 cup of the brown sugar. Beat until fluffy. Add the egg and mix well. Mix in the buttermilk gently. (If you over-mix, the buttermilk will cause the mixture to curdle.) Stir in the dry ingredients and fold in the apple chunks.
Put into muffin tins and sprinkling the remaining 1/4 cup brown sugar on top and bake.