Chocolate Zucchini Cake
["2 1/4 c. flour", "1/4 c. baking cocoa", "1 tsp. salt", "1 tsp. baking soda", "1/2 c. butter", "1/2 c. oil (cooking)", "1 3/4 c. sugar", "2 eggs", "1 tsp. vanilla", "1/2 c. buttermilk", "2 c. grated zucchini", "3/4 c. chopped walnuts", "16 oz. pkg. chocolate chips"]
["Sift together flour, cocoa, baking soda and salt.", "Set aside. Cream together butter, oil, sugar and vanilla until light and creamy with mixer.", "Beat in eggs one at a time.", "Add dry ingredients alternating with buttermilk.", "Stir in zucchini.", "Pour batter into 9 x 13-inch pan.", "Sprinkle with chocolate chips and walnuts.", "Bake at 325\u00b0 for 55 minutes."]
["flour", "baking cocoa", "salt", "baking soda", "butter", "oil", "sugar", "eggs", "vanilla", "buttermilk", "zucchini", "walnuts", "chocolate chips"]