Banana-Nut Cake
["2 1/3 c. all-purpose flour", "1 2/3 c. sugar", "1 1/4 c. mashed bananas", "2/3 c. shortening", "3 eggs", "1 1/4 tsp. baking soda", "1 tsp. salt", "2/3 c. finely chopped nuts", "2/3 c. buttermilk", "1 1/4 tsp. baking powder"]
["Preheat oven to 350\u00b0.", "Grease and flour oblong pan, 13 x 9 x 2-inches, or two 9-inch or three 8-inch round layer pans.", "Beat all ingredients in a large mixing bowl at low speed for 30 seconds, scraping the bowl constantly.", "Beat on high speed for 3 minutes, scraping the bowl occasionally.", "Pour into pans.", "Bake until a wooden pick inserted in the center comes out clean (about 45 to 50 minutes for oblong, 35 to 40 minutes for layers).", "Cool.", "Frost with Vanilla Butter Frosting, if desired."]
["flour", "sugar", "bananas", "shortening", "eggs", "baking soda", "salt", "nuts", "buttermilk", "baking powder"]