For the Brownie:

1️⃣ Preheat your oven to 375°F (190°C). Line an 8-inch round cake pan with parchment paper and lightly grease the pan. Set it aside. 🏺

2️⃣ Using a double boiler (bain-marie), gently melt together 8 oz of the chopped chocolate, both sugars, and butter until smooth. Remove from the heat and allow it to cool slightly. 🍫

3️⃣ Add the eggs, one at a time, to the cooled chocolate mixture, whisking until each egg is fully incorporated. 🍳

4️⃣ In a separate bowl, whisk together the flour and salt. Add this flour mixture and the remaining 2 oz of chopped chocolate to the batter, folding until no dry streaks remain. 🍚

5️⃣ Pour the batter into the prepared cake pan. Bake for 20-25 minutes, or until the center of the brownie no longer jiggles and a toothpick inserted into the center comes out clean. Allow it to cool in the pan for about 5 minutes. 🕒

6️⃣ Run a mini offset spatula around the edges of the brownie to unmold it, then place it on a wire rack to cool to room temperature. 🧁

For the Assembly:

7️⃣ Place a cake ring mold on top of a parchment-lined baking sheet. Line the cake ring mold with acetate. Place the cooled brownie on a cake board and insert it inside the ring mold. 🍰

8️⃣ If using homemade coffee ice cream: Spread the freshly spun, slightly soft ice cream on top of the brownie layer. Cover with plastic wrap and freeze for 2-3 hours, or until the ice cream layer is solid. ❄️

9️⃣ If using store-bought ice cream: Soften the ice cream by beating it in a stand mixer fitted with a paddle attachment until spreadable but still cold. Spread it on top of the brownie layer. Cover with plastic wrap and freeze for 2-3 hours, or until solid. ❄️

🔟 Remove the ice cream cake from the freezer and add the vanilla ice cream layer using the same method as above. Spread the vanilla ice cream into an even layer. Dollop the chocolate fudge over the vanilla layer, then use a knife to swirl the chocolate into the ice cream. Cover with plastic wrap and return to the freezer for another 3 hours or, preferably, overnight. 🍦

1️⃣1️⃣ Remove the cake from the freezer, gently remove the metal cake ring mold, and carefully peel off the acetate strip. If the cake starts to melt, cover it with plastic wrap and return it to the freezer. 🧊

1️⃣2️⃣ Use a sharp knife to cut into the cake. The brownie layer may be a bit stiff, but it will soften as you eat the ice cream cake. Enjoy immediately! 🍽️

Note: Keep any leftovers well wrapped and covered in the freezer.