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Hot Chocolate Dump Cake

An easy Hot Chocolate Dump Cake loaded with chocolate, marshmallows, and cozy cocoa flavor — perfect served warm with whipped cream!
Prep Time15 minutes
Cook Time30 minutes
Total Time45 minutes
Servings: 8 servings
Calories: 807kcal
Author: Lucy Brewer

Ingredients

  • 3.4 or 3.9 ounce box chocolate instant pudding mix
  • 1 envelope cocoa mix
  • 21/2 cups whole milk
  • 1 (15.25 oz) box Chocolate Fudge Cake Mix
  • 4 cups mini marshmallows divided
  • ½ cup semi-sweet chocolate chips
  • ½ cup milk chocolate chips
  • 2 cups whipped cream
  • 1 cup chocolate fudge sauce, heated

Instructions

  • Preheat the oven to 350 degrees F. Grease a 9x13 baking dish. Set aside.
  • To a bowl, add the pudding mix, hot cocoa mix, and milk.
    A mixing bowl with cake mix, eggs, and liquid ingredients surrounded by bowls of chocolate chips, sour cream, and an electric mixer on a white surface.
  • Whisk on medium speed until combined.
    A bowl of chocolate cake batter surrounded by chocolate chips, sour cream, a hand mixer with chocolate on the beaters, and baking ingredient packets on a white surface.
  • Add the cake mix (do not include the additional ingredients listed on the box: eggs, oil, water). Stir with a spatula until combined.
    A mixing bowl with dry chocolate cake mix, surrounded by chocolate chips, whipped topping, electric mixer beaters, and packets on a white surface.
  • Add 2 cups of the marshmallows. Fold until the marshmallows are distributed throughout.
    A bowl of chocolate batter topped with mini marshmallows, surrounded by bowls of chocolate chips, whipped topping, and chocolate spread, with a mixer and a packet nearby.
  • Transfer the batter to the greased baking dish.
    A white baking dish filled with chocolate brownie batter, surrounded by bowls of chocolate chips, chocolate sauce, and cream on a white surface.
  • Sprinkle the chocolate chips on top.
  • Bake for 30 minutes or until a toothpick comes out clean.
  • Turn the oven off.
  • Add the remainder of the marshmallows on top.
    A rectangular baking dish filled with chocolate brownies topped with mini marshmallows, next to bowls of chocolate chips, frosting, and whipped cream.
  • Remove the baking dish from the oven after 5 minutes.
  • Place the baking dish on a wire rack to cool until you are ready to serve.
    A baked chocolate dessert in a white rectangular dish topped with mini marshmallows and chocolate chips, surrounded by Christmas-themed decorations.
  • Top with whipped cream, heated chocolate fudge sauce, and more chocolate chips if you like.

Notes

  • This cake is amazing! It is sweet, rich, gooey, and just decadent. We love chocolate, so this one is always a hit!
  • I like to add the marshmallows after the cake is made. They get perfectly soft. I have made desserts before with marshmallows baked, and the marshmallows get a little tough.
  • I like to make this before guests arrive, so it is warm and gooey.
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