In large bowl, cream the Crisco and gradually beat in the sugar until fluffy. Beat in the eggs, one at a time. Add the flour mixture alternately with the mashed banana, stirring until blended. Stir in the blueberries.
Pour mixture into greased loaf pan. Combine topping ingredients, sprinkle on top of batter. Bake for 50 to 60 minutes or until a toothpick comes out clean.
Pour mixture into greased loaf pan. Combine topping ingredients, sprinkle on top of batter. Bake for 50 to 60 minutes or until a toothpick comes out clean.