Banana bread

This has a bit less oil than some banana bread recipes.

Preheat oven to 350.  Butter a loaf pan.  Will bake 55 minutes.

4 overripe bananas
1 1/2 cups flour (I usually use 1 cup all-purpose and 1/2 cup whole-wheat)
1/2 cup sugar, or to taste
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
2 tablespoons butter, softened
1 egg
big pinch of allspice

Cream butter and sugar.  Toss dry ingredients together (no need to actually sift).  Add egg and mashed bananas to the butter mixture and combine thoroughly.  Fold dry into wet.  Spread into loaf pan and bake 55 minutes.  Remove from pan and cool on a rack.