Decadent Delight: Old-Fashioned Hot Fudge Sundae Cake

Baking the Sponge

1. Transfer to Pan. Pour the batter into the prepared springform pan, smoothing the top with a spatula. The batter should spread evenly, leaving a small border for the sides.
2. Bake. Place the pan on the middle rack and bake for 25–30 minutes, or until a toothpick inserted into the center emerges clean with just a few moist crumbs. The edges will pull away slightly from the pan, indicating doneness.
3. Cool. Allow the cake to cool in the pan for 10 minutes, then run a thin knife around the edge, release the springform, and transfer the cake to a wire rack to cool completely. Cooling prevents the hot fudge from melting too quickly later.

Making the Hot Fudge Sauce

While the cake cools, combine heavy cream, butter, cocoa powder, brown sugar, and sea salt in a medium saucepan. Heat over medium‑low, whisking constantly until the butter melts and the mixture becomes smooth. Bring to a gentle simmer and continue whisking for 3–4 minutes until the sauce thickens enough to coat the back of a spoon. Remove from heat and let it sit for a minute; it will stay pourable but glossy.

Assembling the Sundae Cake

1. Layer the Sauce. Place the cooled cake on a serving platter. Using a ladle, drizzle half of the hot fudge over the top, allowing it to seep into the sides. The cake’s porous texture will absorb the sauce, creating a moist interior.
2. Whip the Cream. In a chilled bowl, beat heavy whipping cream with powdered sugar and vanilla until soft peaks form. This light topping mimics the classic ice‑cream swirl.
3. Top the Cake. Pipe or spoon the whipped cream in a generous swirl over the warm fudge‑soaked cake. Sprinkle toasted pecans across the cream for crunch, then crown each slice with a maraschino cherry before serving.

Final Touches

For an extra glossy finish, warm the remaining fudge sauce for 20 seconds in the microwave and drizzle it artistically over the whipped‑cream peaks. Serve the cake warm, allowing the sauce to stay fluid while the whipped cream remains airy. Each slice delivers a harmonious blend of soft cake, molten chocolate, airy cream, and crunchy nuts—exactly what a sundae‑inspired breakfast should feel like.