Chocolate Cake Cheesecake with Nutella Frosting
Author: 
Recipe Type: Dessert
Serves: 6 inch cake
 
Ingredients
Chocolate Cake
  • 120 g (1/2 cup) unsalted butter, room temperature
  • 200 g ( 1 cup) brown sugar
  • 1 egg
  • 1 egg yolk
  • 100 g (3.5 ounces) melted dark chocolate
  • 1 teaspoon vanilla extract
  • 180 g (1½ cups) plain flour
  • 25 g (1/4) cup cocoa powder
  • ½ teaspoon baking powder
  • ½ teaspoon bicarbonate of soda
  • ¼ teaspoon salt
  • 125 ml (1/2 cup) milk
  • 125 ml (1/2 cup) hot water
Chocolate Cheesecake
  • 380 g (13.4 ounces) cream cheese
  • ½ can condensed milk
  • 25 g (1/8 cup) caster sugar
  • ¼ teaspoon salt
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 200 g ( 7 ounces) dark chocolate
Nutella Frosting
  • 240 g (1 cup) unsalted butter, room temperature
  • 190 g (1 cup) trex or vegetable shortening
  • 600 g (6 cups) icing sugar, sifted
  • 300 g (1 cup) Nutella
  • 200 g ( 7 oz) mascarpone cheese
  • 60 ml - 120 ml ( ¼ cup - ½ cup) whipping cream
  • 2 teaspoons vanilla extract
Chocolate Ganache
  • 100 g (3.5 ounces) dark chocolate
  • 60 ml (1/4 cup) whipping cream
Instructions
  1. Chocolate Cake
  2. Preheat oven to 170 degrees Celcius. Grease and dust the bottom and sides of 2 X 6 inch baking tin with flour or cocoa powder.
  3. Boil some water. Pour your hot water onto your cocoa and whisk until your cocoa dissolves completely. Set aside to cool slightly
  4. Beat unsalted butter and brown sugar for 5 minutes until light and fluffy.
  5. In a mixing bowl sift together flour, baking powder, bicarbonate of soda and salt. Set aside.
  6. Add whole egg and egg yolks and beat well. Scrap down the sides of bowl. Mix in melted chocolate.
  7. Alternatively add the flour mixture and milk in 3 parts, beginning and ending with flour mixture.
  8. Mix in cocoa mixture.
  9. Divide chocolate batter equally between the two tins.
  10. Bake for 25-30 minutes or until a tooth pick inserted in centre comes out clean. Leave to cool tin on wire racks for 10 minutes, then invert onto rack gently and leave to cool completely.
  11. Wrap cakes in cling film and chill in the fridge for 1- 3 hours or overnight.
  12. To make Chocolate Cheesecake
  13. Grease the bottom and sides of a 6 inch loose bottom or springform tin, line the base and sides with greaseproof paper. Wrap two layers of foil around the bottom and sides of pan.
  14. Melt chocolate and leave to cool.
  15. In bowl of a stand mixer (or using hand mixer) beat the cream cheese and condensed milk until smooth and creamy. Slowly beat in sugar. Add salt. Scrape the sides of bowl as needed.
  16. Beat in eggs one at a time until incorporated . Add vanilla extract. Mix in melted chocolate and beat until well incorporated.
  17. Place springform tin in a larger roasting tin/tray and place it into the oven. Pour hot water carefully into a baking tray to one third height of the springform tin.
  18. Bake for about 60 minutes or until set .Turn off oven and leave cheesecake in oven for one hour with the door shut.
  19. Remove cheesecake from oven and carefully lift out of water bath. Let cool completely on rack.
  20. When cool, place in the freezer and let cheesecake freeze completely. Either for several hours or overnight.
  21. To make Nutella Frosting
  22. In bowl of stand mixer beat butter and vegetable shortening on medium speed until light and creamy, about 5 minutes.
  23. Tun down speed to low and add sifted icing sugar a cup at a time and beat well until combined.
  24. Add Nutella and beat on medium speed. Add mascarpone cheese and beat until combined. As frosting thickens add whipping cream and beat until frosting is light and fluffy. Beat in vanilla extract.
  25. To make ganache
  26. To make the chocolate ganache, place chopped chocolate and cream in a microwave safe bowl. Melt in 30 second bursts in microwave, stirring with a whisk after each time, until completed melted. Stir ganache gently with a whisk until smooth and no streaks of cream remain.
  27. Leave chocolate ganache to cool for about 10 minutes before using.
  28. If ganache is thick, add a couple of teaspoons of vegetable oil until you are happy with the consistency.
  29. Spoon some of the ganache into a squeeze bottle.
  30. Assemble the Cake
  31. Using a serrated knife level each cake by cutting the domed top.
  32. Spread a thin layer of icing on your cake board. .Place one layer of cake, flat side down. Fit a piping bag with a large round piping nozzle, fill with Nutella frosting and pipe onto the cake. Remove chocolate cheesecake from freezer, remove from tin carefully and peel away grease proof paper. Place cheesecake layer onto the cake.
  33. Pipe nutella frosting onto cheesecake layer. Place second cake layer on top of cheesecake. If cheesecake layer is wider on the sides than chocolate cake, trim sides using a knife to the same size as cheesecake,
  34. Spread a thin layer of frosting on the sides and then top of cake. It helps to use a turntable when frosting a cake. Hold a scraper flat against the side of the cake and then turn the turntable and scraper to make a nice, smooth coat of icing. Smooth the top of cake with scraper, drawing the peaks on the top edges of cake into the centre.
  35. Chill crumb coated cake in fridge for 30 minutes until frosting is nice and firm.
  36. Once cake is chilled, cover evenly with Nutella frosting using an off set spatula and then use a scraper to smooth the edges.
  37. Place the cake back in the fridge for an hour.
  38. Whilst cake is chilling,make your ganache.
  39. Spoon some of the ganache into a squeeze bottle.
  40. Remove the cake from the fridge and add drips of ganache using a squeeze bottle or a spoon over the top edge of the cake. Next, spoon more ganache on the top of the cake, pushing it just to the edge with a small offset spatula or back of the spoon.
  41. Fit an open 1M star nozzle into a piping bag. Fill with Nutella frosting and pipe swirls on top of cake. Top with hazelnut truffles.
  42. Notes
  43. Parts of this cake can be made in advance.
  44. You can bake the cheesecake layer at least a week in advance. Wrap the baking tin with cling film and store in the freezer until ready to use.
  45. Bake chocolate cake layers the night before you plan on assembling the cake.
  46. The buttercream frosting can be made on the day the cake is put together.
  47. Chill cake for at least an hour before pouring on the chocolate ganache.
Recipe by Honest Cooking at http://honestcooking.com/chocolate-cake-cheesecake-nutella-frosting/