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| chocolate cake mix: 18.25 oz |
| chocolate pudding dry mix: 3 oz |
| eggs: 4 |
| water: 1 cup |
| sour cream: 2 cups |
| vegetable oil: 3/4 cup |
| semisweet chocolate chips (chips): 3/4 cup |
| milk chocolate chips: 1/4 cup |
| walnuts (chopped): 1/2 cup (chopped) |
Credit: Food.com