1 cup all-purpose flour
1 cup whole wheat flour
1 1/2 teaspoon baking powder
1/2 teaspoon baking soda
2 teaspoons dry mustard
1 teaspoon salt
1 cup grated cheddar cheese
1 cup buttermilk
1/4 cup oil
2 eggs
2 tablespoons minced onion
Directions:
Preheat oven to 375ºF. Spray a loaf pan with cooking spray.
Combine flours, baking powder, soda, mustard, salt and cheese. Beat together buttermilk, oil, eggs and onion. Add the wet mixture to the dry mixture and mix just until combined.
Pour into greased loaf pan and bake at 375ºF for 45-50 minutes, or until a tester inserted near the center comes out clean. Cool for 10 minutes beforeunmolding from the pan.