1 (18 1/2 oz.) pkg. yellow cake mix
1 (3 oz.) pkg. instant chocolate pudding mix
1 c. sour cream
1 c. chopped walnuts
4 eggs
1 c. bitter sweet chocolate chips
1/3 c. oil
1/4 c. rum

Mix in mixing bowl cake mix, pudding mix, sour cream, eggs, oil, rum, 1/2 cup nuts, and 1/2 cup chocolate chips. Beat 5 minutes. Add remaining nuts and chocolate chips by folding into batter. Grease and flour a 10 inch bundt cake pan. Bake for 1 hour in preheated 325 degree oven. Cool for 30 minutes. Invert and sprinkle with confectioners' sugar and drizzle melted chocolate chips over cake for an elegant look.