Grease and lightly flour two ... Add shortening and banana; beat on low speed ... until combined. Add buttermilk or sour milk, eggs, and vanilla; beat ... thoroughly. Frost with Cream Cheese Frosting. In a mixing ... chopped nuts, if desired.
Beat at medium speed 2 ... and frost. To sour milk, combine 1 tablespoon vinegar ... small very ripe banana, 1 teaspoon lemon juice ... necessary until spreading consistency.