Zucchini Chocolate Cake
["2 1/2 c. unsifted flour", "2 1/2 tsp. baking powder", "1 tsp. cinnamon", "3/4 c. soft butter or margarine", "3 eggs", "2 tsp. grated orange peel", "1 c. chopped nuts", "1/2 c. cocoa", "1 1/2 tsp. baking soda", "1 tsp. salt", "2 c. sugar", "2 tsp. vanilla", "2 c. coarsely grated zucchini", "1/2 c. milk"]
["Thoroughly combine flour, cocoa, baking powder, baking soda, cinnamon and salt; set aside.", "With an electric mixer, beat butter or margarine and sugar until smooth.", "Add eggs, one at a time, beating after each addition.", "With a spoon, stir in vanilla, orange peel, zucchini and nuts.", "Alternately stir dry ingredients and milk into zucchini mixture."]
["flour", "baking powder", "cinnamon", "butter", "eggs", "nuts", "cocoa", "baking soda", "salt", "sugar", "vanilla", "zucchini", "milk"]