Chocolate Roulade With Mascarpone Filling

We made this for Rosh Hashonah this year. It is a wonderful and very pretty chocolate roulade. This recipe is also wheat-free(uses potato flour), so it is suitable for coeliacs. Diana's Desserts, have had this since 2006 and I felt that, this, was the dessert for the High Holy Days. It was scrumptious and decadent!

• Ready In: 1 hr
• Serves: 8

Ingredients

• CHOCOLATE CAKE

• 6  eggs, separated
• 1⁄2 cup  baker's  superfine sugar or 1⁄2 cup  baker's caster sugar
• 1⁄4 cup  dutch process cocoa, plus extra
•  dutch process cocoa, for dusting
• 2  tablespoons potato flour (potato starch)
• 4 1⁄2 ounces dark chocolate, melted

• CREAM FILLING

• 1⁄4 cup  raspberry preserves
• 1 1⁄2 tablespoons  raspberry brandy (Framboise)
• 10  ounces mascarpone cheese
• 2  ounces pistachios, lightly roasted, coarsely chopped

• GARNISH

•  raspberries (optional) or   fresh edible flower (optional)
•  mint sprig (optional)

Directions

1. CAKE:
2. Preheat oven to 350º F/180ºC.
3. Line a 15 x 10-inch jelly roll pan (swiss roll tin) with parchment paper.
4. Using an electric mixer, whisk yolks and sugar until thick and pale.
5. Sift cocoa and starch over then fold in gently.
6. Add chocolate and 2 tablespoons water and stir gently to combine.
7. Using an electric mixer, whisk egg whites in a clean bowl until soft peaks form, then fold into chocolate mixture.
8. Spoon mixture into prepared pan and smooth top.
9. Bake in preheated oven for 12-15 minutes or until cake springs back when lightly pressed.
10. Dust top of cake heavily with cocoa then cover with a piece of parchment paper.
11. Invert cake, with paper, on to a work surface, then gently peel away the parchment paper.
12. Working quickly while cake is still hot, gently roll up from long side, using paper as a guide.
13. Let cool completely before filling.
14. MASCARPONE FILLING:
15. Combine marmalade, liqueur and 2 tablespoons water in a small saucepan and stir over low-medium heat until combined and marmalade has melted.
16. Combine with mascarpone in a bowl and whisk until thick.
17. Stir in pistachios.
18. Gently unroll cake and spread with filling, leaving a half inch (2 cm) border.
19. Re-roll cake (it may crack a little), then wrap in foil and refrigerate for 30 minutes or until filling is firm.
20. Cake will keep, refrigerated, for up to 3 days.
21. Serve topped with raspberries, edible flowers or mint sprigs.
22. *The cream filling may be made without the marmalade and pistachio's. If desired, you may make a cream filling with just the mascarpone cheese and orange liqueur.
23. **Tips:
24. Grease the jelly roll pan before lining it. This will make the paper sit flat and adhere to the corners.
25. To fold egg whites into a batter, always use a large metal spoon and a light hand to preserve the air. Start by stirring 1/4 of the egg whites into the batter to lighten it, then gently fold in remaining egg white.
26. Potato flour (potato starch) is available at most supermarkets in the baking or flour section.
27. For the best flavor, use a dark chocolate with at least 60 % cocoa solids.