1/2 cup butter
3/4 cup packed brown sugar
1 egg
1 cup whole wheat flour
1/2 cup white flour
1 t baking soda
3/4 t salt
1 1/4 cup mashed banana
1/4 cup plain yogurt
1/4 - 1/2 cup walnuts
Preheat oven to 350F. Cream butter and sugar until fluffy. Beat in egg. In another bowl, sift together flours, baking soda, and salt. In a third bowl, mix together banana and yogurt. Alternate adding dry and banana to the butter mix. Stir just enough to combine well. Fold in walnuts. Bake 50-60 minutes in a bread pan. Makes 1 loaf.
