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Cake Batter Fudge Brownie Ice Cream Cake

Cake batter fudge brownie ice cream cake layers a fudgy brownie base with funfetti-style cake batter ice cream, finished with a hot fudge ribbon. It freezes into a thick, sliceable frozen slab topped with whipped topping and rainbow sprinkles.
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Prep Time 30 minutes
Cook Time 30 minutes
freezing 8 hours
Total Time 9 hours
Servings: 12 servings
Course: Dessert
Cuisine: American
Calories: 1250
Ingredients Equipment Method Notes

Ingredients
  

Brownie base
  • 1 box brownie mix Bake in a 9x13 pan per package directions, then cool completely.
Cake batter ice cream layer
  • 0.5 gallon cake batter or birthday cake ice cream Soften just enough to fold smoothly.
  • 0.25 cup rainbow sprinkles Fold into the softened ice cream.
Fudge ribbon
  • 1 cup hot fudge sauce Drizzle and swirl on top of the ice cream layer.
Whipped topping
  • 2 cups whipped topping Spread over the fully frozen cake before final sprinkle topping.
  • 1 more rainbow sprinkles for decoration Use as needed for a generous top layer.

Equipment

  • 1 sheet pan
  • 1 9x13 baking pan

Method
 

Bake and cool the brownies
  1. Bake the brownie mix in a 9x13 pan according to package directions, then cool completely so the frozen layers don’t melt. Temperature and time: follow the box baking instructions until set in the center.
Mix and layer the cake batter ice cream
  1. Fold the rainbow sprinkles into the softened cake batter or birthday cake ice cream until evenly distributed. Visual cue: the ice cream should look speckled with sprinkles throughout.
  2. Spread the sprinkle ice cream over the cooled brownies in a thick, even layer. Visual cue: you should see a uniform surface with no brownie showing through.
Swirl in the fudge ribbon
  1. Drizzle the hot fudge sauce over the top and swirl with a knife to create ribbons. Visual cue: dark fudge streaks should swirl across the surface in multiple passes.
Freeze to firm up
  1. Freeze for 6 hours until completely firm. Visual cue: the cake should slice with clean edges and no wobble.
  2. Cover the firm cake with whipped topping and shower generously with rainbow sprinkles. Visual cue: the top should be fully covered and heavily sprinkled.
  3. Freeze for 2 more hours before slicing until the whipped layer sets. Visual cue: a knife should glide through with a clean cut line.

Notes

Pro tip: soften the ice cream just until pliable—if it’s too melty, the brownie layer will bleed. Store covered in the freezer up to 2 months (best within 1 month); thaw in the fridge for 10–15 minutes for easier slicing. Freezing is yes. For a lighter option, use low-fat whipped topping in the final layer (texture will be slightly softer).