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This Butterfinger Bomb Cake transforms a simple chocolate box mix into a showstopping dessert that will have everyone asking for seconds. The combination of rich chocolate, gooey caramel, and crunchy Butterfinger pieces creates an indulgent treat that's surprisingly easy to make.
I first created this cake for my son's birthday when I was short on time but wanted something special. The look on his face when he took that first bite was priceless—now it's requested at every family celebration.
Ingredients
- Box of Chocolate Cake Mix plus called for ingredients: Start with quality mix for best results
- Sour Cream: Creates incredible moisture and richness
- Chocolate Chips: Add pockets of melty chocolate throughout
- Caramel Ice Cream Topping: Infuses the cake with sweet gooey goodness
- Vanilla Frosting: Provides the perfect creamy contrast
- Butterfinger Candy Pieces: Adds signature crunch and flavor
Step-by-Step Instructions
- Prepare the Batter:
- Mix the chocolate cake according to package directions, then fold in the sour cream and chocolate chips. The sour cream makes the cake incredibly moist while chocolate chips create delightful melty pockets throughout each slice.
- Bake the Cake:
- Pour batter into a 9x13 inch pan and bake according to package instructions until a toothpick inserted comes out with a few moist crumbs. Do not overbake or the cake will dry out.
- Create Caramel Infusion:
- While the cake is still warm, use the handle end of a wooden spoon to poke holes evenly across the entire surface. Reserve 5 tablespoons of caramel sauce for topping, then pour the remaining caramel over the cake, allowing it to seep into the holes. The warm cake absorbs the caramel beautifully.
- Chill and Frost:
- Refrigerate the cake for at least 30 minutes to set the caramel. Once chilled, spread the vanilla frosting evenly across the top. The cold cake helps the frosting spread more easily without tearing the surface.
- Add Finishing Touches:
- Sprinkle the crumbled Butterfinger pieces generously over the frosting and drizzle with the reserved caramel sauce. This creates both visual appeal and that signature Butterfinger crunch in every bite.
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The first time I made this cake, I accidentally dropped an entire Butterfinger into the batter while unwrapping others. That happy accident inspired me to try adding the chopped candy pieces as a topping, and now it's the signature element that makes this cake so memorable at family gatherings.
Make-Ahead Magic
This cake actually improves with time in the refrigerator. The caramel continues to infuse throughout the cake, creating an even more moist and flavorful dessert. You can make it up to two days before serving, making it perfect for entertaining when you want to minimize day-of preparations.
Customization Options
Feel free to experiment with different candy bar toppings. While Butterfingers create the signature bomb effect, Snickers, Heath bars, or Reese's cups also work beautifully. You can even do a mixed candy topping for a truly decadent "kitchen sink" style cake that uses up leftover Halloween candy.
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Serving Suggestions
For an extra special presentation, warm individual slices for 10-15 seconds in the microwave just before serving. This slightly melts the chocolate chips and caramel for an irresistible gooey texture. Pair with a scoop of vanilla ice cream for the ultimate dessert experience that balances temperatures and textures perfectly.
Storage Tips
Keep leftovers refrigerated in an airtight container for up to 5 days. The cake remains incredibly moist due to the sour cream and caramel infusion. For longer storage, you can freeze individual slices wrapped tightly in plastic wrap for up to 3 months—they thaw beautifully for late-night sweet cravings.
Frequently Asked Questions
- → How do I make the cake extra moist?
Add sour cream and chocolate chips to the cake mix, as outlined in the steps, for a moist and rich texture.
- → Can I use other candy toppings?
Yes, you can experiment with your favorite candy, but Butterfinger offers a unique combination of crunch and sweetness.
- → Do I need to chill the cake?
Yes, chilling the cake enhances the flavors and allows the caramel to set properly before serving.
- → What type of frosting works best?
A classic vanilla frosting is ideal, but you can substitute it with buttercream or whipped topping if preferred.
- → Can I make this ahead of time?
Absolutely, you can prepare and chill the cake a day before. Add the toppings just before serving for freshness.