Chocolate Cake With Fudge Frosting
["1 cake mix or 2 cake mixes for large group (for 1 mix, make layered or divide 1 oblong; for 2 mixes, bake 2 oblong cakes or two 11-inch round pans)", "1 to 1 1/2 c. whipping cream", "1/4 c. powdered sugar", "1 tsp. vanilla (optional)", "1 (6 oz.) pkg. chocolate chips", "1/2 c. light cream or milk", "1 c. butter", "2 1/2 c. unsifted powdered sugar"]
["Bake cakes and cool.", "Whip the whipping cream; add 1/4 cup powdered sugar and vanilla.", "Beat until stiff.", "Spread whipped cream between layers of cake.", "Refrigerate while making frosting."]
["cake", "whipping cream", "powdered sugar", "vanilla", "chocolate chips", "light cream", "butter", "powdered sugar"]