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Export 8 ingredients for grocery delivery
Step 1
Preheat oven to 350 degrees F (175 degrees C). Grease a 4x8-inch loaf pan.
Step 2
Beat peanut butter and shortening in a bowl. Gradually add sugar, beating until light and fluffy. Beat one egg into peanut butter mixture until completely blended before beating in the second egg. Stir in mashed banana.
Step 3
Combine flour, baking powder, salt, and baking soda in a bowl. Stir flour mixture into banana mixture alternately with buttermilk, mixing until batter is just blended. Pour batter into prepared loaf pan.
Step 4
Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 1 hour.