modified from the Pillsbury Best Muffins & Quickbreads cookbook
3/4 cup sugar
1/2 cup butter
3 small-medium mashed ripe bananas
1/3 cup milk
1 tsp vanilla
1 1/2 cups all-purpose flour
1/2 cup whole wheat flour
1 tsp baking soda
1/2 tsp salt
*optional* 1/2 cup chocolate chips
Preheat oven to 350°F. Grease bottom only of 9x 5 or 8x4-inch loaf pan. In large bowl, combine sugar and margarine; beat until light and fluffy. Add eggs; beat well. Add bananas, milk and vanilla; blend well.
In small bowl, combine flour, baking soda and salt; mix well. Add to banana mixture; stir just until dry ingredients are moistened. Gently stir in chocolate chips. Pour into greased pan.
Bake at 350°F. for 50 to 60 minutes (70 minutes in Calgary) or until toothpick inserted in center comes out clean. Cool 5 minutes; remove from pan. Cool 1 hour or until completely cooled.