Grease and flour (I used Baker's Joy) 2 9x5 inch loaf pans.
Combine cake mix, pudding mix, sour cream, vegetable oil, eggs, water, and 1 cup chocolate chips in a large bowl and beat on medium speed with an electric mixer for 1-2 minutes.
Pour half of the batter into each of the prepared pans.
Bake for 45-50 minutes, or until a toothpick stuck in the center of the loaf comes out clean.
Let cool in loaf pan for about 30 minutes, then remove from pan and let cool completely.
Melt 1 cup chocolate chips in the microwave in 30 second intervals, stirring in between, until melted and smooth. Drizzle over the top of each cake.
Sprinkle remaining 1/2 cup chocolate chips over the top.
Cut into pieces and serve.
Notes
We think it tastes great with a scoop of vanilla ice cream on top!