Chocolate Tiramisu Tart Recipe

1. Prep pan

Line a 9-inch tart pan with removable bottom (or 9-inch springform). Lightly butter the pan and set aside.

2. Warm the butter in a small saucepan or microwave until melted. Stir in 1 tbsp granulated sugar. Brush or drizzle the melted butter mixture lightly over each ladyfinger to moisten and add richness; set on a plate.

3. Combine the cooled strong coffee with the optional coffee liqueur in a shallow bowl. Keep the bowl within reach to quickly dip ladyfingers.

4. Arrange 9 ladyfingers, cut if necessary to fit, along the bottom of the tart pan to form the first layer. Working quickly so the cookies do not get soggy, dip remaining ladyfingers one at a time into the coffee mixture for 1–1.5 seconds (just long enough to absorb liquid but not collapse) and line them upright around the edges of the pan to form a ladyfinger wall. Reserve any extra dipped ladyfingers for a top decorative layer if desired.

5. Sift 2 tsp dark cocoa powder evenly over the bottom layer of ladyfingers. This creates a chocolate base flavor and prevents sogginess.

6. Make a custard base: In a medium saucepan, combine the milk and 1/2 cup of the heavy cream. Warm over medium heat until steam appears and small bubbles form at the edges (do not boil). Remove from heat.

7. In a separate bowl, whisk the egg yolks with 3 tbs granulated sugar until pale and slightly thickened, about 2–3 minutes.

8. Temper the yolks: slowly pour about 1/3 cup of the hot milk mixture into the yolks while whisking constantly to raise the temperature. Then pour the tempered yolk mixture back into the saucepan with the remaining milk mixture, stirring constantly.

9. Return saucepan to low heat and cook, stirring constantly with a wooden spoon or spatula, until the custard thickens enough to coat the back of the spoon (170–175°F / 77–80°C). Do not boil. Remove from heat.

10. Pour custard through a fine-mesh sieve into a bowl to remove any cooked bits. Cool for 5 minutes, then whisk in mascarpone cheese until smooth and fully incorporated. Add vanilla extract and the 2 tbsp sweetened condensed milk (if using) and whisk to combine.

11. Chill custard: cover the bowl with plastic wrap placed directly on the custard surface and refrigerate until fully cold, at least 2 hours (or overnight).

12. Churn ice cream: Once the custard is chilled, stir in the remaining 1/2 cup heavy cream. Pour the mixture into an ice cream machine and churn according to manufacturer instructions until it reaches soft-serve consistency (about 20–30 minutes).

13. Prepare chocolate ripple: While churning or shortly after, melt the 2 oz finely chopped bittersweet chocolate in a heatproof bowl over simmering water or in short bursts in the microwave until smooth. Allow it to cool slightly so it becomes viscous but still pourable (warm, not hot).

14. Assemble ice cream into tart: Spoon one-third of the churned tiramisu ice cream into the prepared ladyfinger-lined tart crust and spread gently. Drizzle or spoon thin ribbons of the melted bittersweet chocolate over this layer. Add another third of the ice cream, spread, and drizzle more chocolate; finish with the remaining ice cream, smoothing the top. Use a skewer to create gentle swirls so the chocolate forms ripples through the ice cream. If desired, dust the surface lightly with 2 tbsp unsweetened cocoa powder stirred into a small amount of sugar to taste or use the reserved 2 tsp dark cocoa for a subtle dusting.

15. Cover the tart tightly with plastic wrap (press a piece of parchment against the ice cream surface first to protect texture) and freeze until firm, at least 4 hours or preferably overnight for easiest slicing.

16. Make ganache: Place the 4 oz chopped bittersweet chocolate in a heatproof bowl. Heat 1 cup heavy cream in a small saucepan until it just begins to simmer (do not boil). Pour the hot cream over the chopped chocolate and let sit 1 minute, then whisk until smooth and glossy. Stir in 1 tsp unsalted butter for extra shine, if using. Let the ganache cool until slightly thickened but still pourable (about 10–15 minutes).

17. Glaze the tart: Remove the frozen tart from the freezer and release from the pan. Place it on a wire rack set over a tray. Pour the slightly cooled ganache over the center of the tart, allowing it to gently flow and coat the top and drip slightly down the sides. Use an offset spatula to smooth if necessary. Return tart to freezer for 10–15 minutes to set the ganache.

18. Finish and serve: Once ganache is set, dust the top lightly with 1 tsp cocoa powder and scatter chocolate shavings (2 tbsp) over the tart for decoration. Let the tart sit at room temperature for 5–8 minutes before slicing for easier cutting. Slice with a hot, dry knife (warm under hot water and wiped dry between each cut) to produce clean slices.

19. Storage: Keep covered and frozen. For serving, remove and let soften at room temperature for 5–10 minutes. Consume within 5 days for best texture and flavor.