Doctor Bird Cake
["3 c. flour", "1 tsp. baking soda", "1 tsp. cinnamon", "2 c. sugar", "1 tsp. salt", "1 1/2 c. cooking oil", "1 (8 oz.) can crushed pineapple, do not drain", "1 1/2 tsp. vanilla extract", "3 eggs", "2 c. diced bananas", "1/2 c. chopped nuts (optional)"]
["Preheat oven to 350\u00b0.", "Grease an 8-inch round tube cake pan. Set aside."]
["flour", "baking soda", "cinnamon", "sugar", "salt", "cooking oil", "pineapple", "vanilla extract", "eggs", "bananas", "nuts"]