Kahlua Chocolate Cake
["3/4 c. butter or margarine, softened", "2 1/4 c. sugar", "4 eggs", "2 (1 oz.) envelopes premelted unsweetened chocolate", "1/3 c. Kahlua", "2 1/4 c. sifted cake flour", "1 tsp. cream of tartar", "1/2 tsp. baking soda", "1/4 tsp. salt", "3/4 c. milk", "3/4 c. chopped hazelnuts or pecans, toasted then divide", "frosting"]
["Beat butter at medium speed of electric mixer; gradually add sugar, beat well.", "Add eggs, one at a time; beat well after each one.", "Add the Kahlua and chocolate; beat until blended.", "Combine flour, cream of tartar, soda and salt; add to the mixture in mixing bowl; alternate with the milk until all is used (begin and end with flour).", "Mix well after each addition.", "Pour into 3 greased and floured 9-inch cake pans.", "Bake at 350\u00b0 for 18 to 23 minutes or until cake tests done.", "Cool on wire racks for 10 minutes; remove from pan and cool.", "Stir 1/2 cup nuts into 1 cup of the frosting; spread between layers.", "Frost rest of cake. Sprinkle with reserved nuts."]
["butter", "sugar", "eggs", "chocolate", "Kahlua", "cake flour", "cream of tartar", "baking soda", "salt", "milk", "hazelnuts", "frosting"]