Name: Butterfinger Cake
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Yield: 12 Servings
Cuisine: American
Ingredients: 15.25 ounces Pillsbury™ Moist Supreme® Devil’s Food cake Mix; 1 cup Smooth peanut butter; 1.5 cups Butterfingercandy bar pieces; 8 ounces Frozen whipped topping; 0.25 cup Chocolate syrup

My Butterfinger Cake is about to be your new obsession. If you’re anything like me and can’t resist the dreamy duo of peanut butter and chocolate. This cake comes together with minimal effort and is ready to devour in just 45 minute. Yes, even on a weeknight sweet-tooth whim.

Dessert

45 m

American

It is a Keeper

March 12, 2026

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From the Cook

1/7

Butterfinger Cake

It is a Keeper Verified

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Ingredients

Warning0 allergens identified

Butterfinger Cake

15 ¼ ounces Pillsbury™ Moist Supreme® Devil’s Food cake Mix

1 cup Smooth peanut butter

1 ½ cups Butterfingercandy bar piecesdivided

8 ounces Frozen whipped toppingthawed

¼ cup Chocolate syrup

Instructions

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Instructions

Prepare cake according to package directions.

When cake is finished baking, immediately poke holes all over the top using the back of a wooden spoon.

Add peanut butter to a microwave safe bowl and microwave on high for 45 seconds, or until peanut butter is thin.

Stir in ½ cup of candy pieces.

Pour peanut butter mixture over top of the cake, using a spatula to spread it evenly.

Allow to cool.

In a large bowl, mix whipped topping and chocolate syrup; spread on top of cooled cake.

Top with remaining candy pieces.

Nutrition

My Calorie Intake

0
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Tips & Tricks (5)

Peanut Butter Swirl Technique 🌀
Warm your peanut butter for 15-20 seconds in the microwave before swirling into the batter to ensure smooth, even distribution without streaky patches.
Candy Bar Timing Strategy 🍫
Reserve half your Butterfinger pieces for the final frosting layer—this keeps them crispy and fresh rather than soggy from absorbing moisture while baking.
Whipped Topping Stability Hack ❄️
Fold in whipped topping when it's slightly thawed but still cold, and work quickly to maintain its airy texture and prevent deflation in your frosting.
Chocolate Syrup Distribution 🎯
Drizzle chocolate syrup in a crosshatch pattern between cake layers rather than pooling it in one spot to ensure every bite has chocolate flavor throughout.
Perfect Cake Mix Moistness 💧
Substitute milk for water in the cake mix and add an extra egg to create a richer, more moist crumb that holds up better with peanut butter and wet frosting layers.