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Ultimate Chocolate Caramel Toffee Crunch Cake

A decadent slice of chocolate caramel toffee crunch cake showing layers of dark chocolate cake, caramel, and creamy filling.
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Create a showstopping, bakery-quality dessert at home with this recipe for a moist chocolate cake layered with gooey salted caramel and crunchy homemade toffee bits. This cake delivers indulgence with every slice.

Ingredients

Scale
  • For the Moist Chocolate Cake Layers:
  • 1 3/4 cups all-purpose flour
  • 1 3/4 cups granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 teaspoons baking soda
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon salt
  • 2 large eggs
  • 1 cup buttermilk
  • 1/2 cup vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup hot water or hot brewed coffee
  • For the Homemade Toffee Crunch:
  • 1 cup granulated sugar
  • 1/2 cup unsalted butter
  • 1/4 cup water
  • 1 teaspoon baking soda
  • 1 cup chopped toffee pieces (or store-bought toffee bits)
  • For the Salted Caramel Sauce:
  • 1 cup granulated sugar
  • 1/4 cup water
  • 1/2 cup heavy cream, warmed
  • 4 tablespoons unsalted butter, cut into pieces
  • 1 teaspoon sea salt
  • For Assembly and Frosting (Use your favorite chocolate buttercream):
  • 2 cups unsalted butter, softened
  • 4 cups powdered sugar
  • 1 cup unsweetened cocoa powder
  • 1 teaspoon vanilla extract
  • 1/4 cup milk or heavy cream
  • 1/2 cup chocolate frosting, reserved for topping
  • 1/2 cup salted caramel sauce, reserved for drizzling

Instructions

  1. Prepare the Toffee Crunch: Line a baking sheet with parchment paper. In a medium saucepan, combine 1 cup sugar, butter, and water. Heat over medium heat, stirring until sugar dissolves. Stop stirring and boil until the mixture reaches a deep amber color (about 300 degrees F on a candy thermometer). Remove from heat immediately. Quickly whisk in the baking soda (the mixture will foam). Pour onto the prepared sheet and spread slightly. Let cool completely, then break into small, crunchy pieces. Set aside.
  2. Bake the Chocolate Cake Layers: Preheat your oven to 350 degrees F. Grease and flour three 8-inch round cake pans. Whisk together flour, sugar, cocoa powder, baking soda, baking powder, and salt in a large bowl. Add eggs, buttermilk, oil, and vanilla. Beat on medium speed for two minutes. Carefully stir in the hot water or coffee. Divide batter evenly among the prepared pans. Bake for 30 to 35 minutes, or until a toothpick inserted comes out clean. Cool in pans for 10 minutes before inverting onto a wire rack to cool completely.
  3. Make the Salted Caramel Sauce: Combine 1 cup sugar and 1/4 cup water in a heavy-bottomed saucepan. Heat over medium heat without stirring until the sugar dissolves, then boil until it reaches a deep amber color. Remove from heat. Carefully whisk in the warm heavy cream (it will bubble vigorously). Whisk in the butter pieces until melted, then stir in the sea salt. Let cool slightly. Reserve half for filling/drizzling and half for the frosting.
  4. Prepare the Chocolate Buttercream: Beat the softened butter until creamy. Gradually add powdered sugar and cocoa powder, alternating with milk/cream until smooth. Beat in vanilla extract. If the frosting is too thin, add more powdered sugar; if too thick, add a splash more milk.
  5. Assemble the Cake: Place one cooled cake layer on a serving plate. Spread a layer of chocolate buttercream over the top. Drizzle generously with half of the reserved salted caramel sauce. Sprinkle with half of the homemade toffee crunch pieces. Repeat with the second cake layer, buttercream, remaining caramel, and toffee crunch. Top with the final cake layer.
  6. Frost and Finish: Frost the entire cake with the remaining chocolate buttercream. Use a small amount of the reserved chocolate frosting to create a decorative top border or swirl. Drizzle any remaining caramel over the top edge so it drips down the sides. Press extra toffee pieces onto the sides or top edge for texture.

Notes

  • For the moistest cake, use hot brewed coffee instead of hot water; the coffee deepens the chocolate flavor without making the cake taste like coffee.
  • If you prefer a smoother caramel layer, you can mix a few tablespoons of the buttercream into the reserved caramel sauce before layering to create a softer filling consistency.
  • Chill the cake layers for 30 minutes before frosting to make assembly easier and prevent crumbs.

Nutrition

Find it online: https://cravybite.link/chocolate-caramel-toffee-crunch-cake/