Gooey Chocolate Caramel Turtle Cake (Printable version)

Chocolate sponge rolled with caramel, pecans, and drizzled in silky ganache for a decadent treat.

# What you need:

→ Chocolate Sponge

01 - 4 large eggs, room temperature
02 - 1/2 cup granulated sugar
03 - 1 tsp vanilla extract
04 - 1/2 cup all-purpose flour
05 - 1/4 cup unsweetened cocoa powder
06 - 1/2 tsp baking powder
07 - 1/4 tsp salt

→ Caramel Filling

08 - 2/3 cup thick caramel sauce
09 - 2/3 cup chopped toasted pecans

→ Chocolate Ganache

10 - 3.5 oz semi-sweet chocolate, chopped
11 - 6 tbsp heavy cream

→ Garnishes

12 - Pecan halves, for topping
13 - Extra caramel sauce, for drizzling

# How To:

01 - Preheat oven to 350°F. Line a 10x15 inch jelly roll pan with parchment paper and lightly grease the surface.
02 - In a mixing bowl, beat the eggs with granulated sugar and vanilla extract using an electric or stand mixer for 5 minutes, until the mixture turns pale, thick, and forms ribbons when lifted.
03 - Sift together the all-purpose flour, cocoa powder, baking powder, and salt. Gently fold the dry mixture into the whipped egg mixture until just combined, being careful not to deflate the batter.
04 - Pour the batter into the prepared jelly roll pan and spread it into an even layer. Bake for 10 to 12 minutes, or until the cake springs back lightly when touched in the center.
05 - While the sponge is still hot, invert it onto a clean kitchen towel dusted with powdered sugar. Peel away the parchment paper. Starting from the short end, roll the cake and towel together into a log. Allow it to cool completely in this shape.
06 - Once the cake has cooled completely, carefully unroll it. Spread the caramel sauce evenly across the surface, reserving about 2 tablespoons for later drizzling. Sprinkle the chopped toasted pecans over the caramel layer.
07 - Gently roll the cake back up without the towel, keeping it snug but not too tight. Place the roll seam-side down on a serving platter.
08 - Place the chopped semi-sweet chocolate in a heatproof bowl. Heat the heavy cream until hot but not boiling, then pour it over the chocolate. Let it sit for 2 minutes, then stir until the ganache is glossy, smooth, and slightly thickened.
09 - Pour the ganache over the cake roll, allowing it to flow down the sides naturally. Drizzle with the reserved caramel sauce and arrange pecan halves on top as garnish.
10 - Refrigerate the cake roll for 20 minutes to set the ganache before slicing. For the best texture and flavor, allow it to come to room temperature before serving.

# Expert Advice:

01 -
  • The caramel filling soaks into the sponge slightly overnight, making every slice outrageously moist and impossible to stop eating.
  • It looks dramatically impressive on a platter but the ganache hides any rolling mistakes, which is honestly a lifesaver.
  • Pecans bring a buttery crunch that balances the sweetness perfectly without needing any fancy techniques.
02 -
  • Rolling the sponge while it is still hot is the single most important step, because waiting even a few minutes lets it set flat and it will crack every single time you try to shape it.
  • If your caramel is too runny, pop it in the fridge for fifteen minutes until it thickens to a spreadable consistency that actually stays put inside the roll.
  • The cake tastes even better the next day when the caramel has had time to soak into the sponge and meld everything together into one cohesive, irresistible bite.
03 -
  • Dust your kitchen towel generously with powdered sugar before inverting the cake, because any bare spots will stick and tear the delicate sponge when you try to peel it away.
  • When making ganache, never stir aggressively in circles because you will incorporate air bubbles that show up as ugly white streaks once it sets, so stir slowly from the center outward with patience.