Image of Best Chocolate Birthday Cake

Best Chocolate Birthday Cake

Prep Time: 10 min
Cook Time: 60 min

Ingredients

  • 1 (18.25 ounce) package devil's food cake mix
  • 1 (3.9 ounce) package instant chocolate pudding mix
  • 1 cup sour cream
  • ¾ cup vegetable oil
  • ¾ cup water
  • 4 eggs
  • 1 cup semisweet chocolate chips
  • 1 (16 ounce) package prepared chocolate frosting
  • 2 tablespoons candy-coated milk chocolate pieces (such as M&M's®), or as desired