Eggless Tiramisu Inspired Cake ... Coffee, Kahlua and mascarpone, everything you'd want in dessert if you love coffee. I love how many avatars a simple cake can take, and this one turned out to be the perfect coffee lovers dessert, simple & fuss free!
Preheat the oven to 180C. Lightly grease and line a 5" baking tin.
In a large bowl, whisk together the buttermilk, oil, brown sugar and coffee well. Add the apple cider vinegar, baking powder, baking soda and salt and whisk again. Leave to stand for 5 minutes until bubbly.
Now sift over the plain flour and whisk in to mix.
Transfer batter to the prepared dish. Bake for approximately 30 minutes until the tester comes out clean.
Remove to cooling rack, demold after 10-15 minutes, then cool completely. Cut into 2 layers.
Using a 3" cutter, gently cut a hole through the cake. Slice a 1/2" slice of the cut out cake and return to the hole to make a base.
Moisten the base with Kahlua {optional}. See reels on @passionateaboutbaking {Alternatively use a strong shot of slightly sweetened coffee}.
Pipe ganache on the rim and top with the other later. Chill in freezer for 10 minutes until firm, then fill with mascarpone.
Return to freezer for 2 hours, else refrigerate overnight.
Pipe ganache on the top edge.
Ganache
Place the cream and chocolate in a bowl and place the bowl over a double boiler to melt.
Whisk until smooth then allow the ganache to rest until it reaches piping consistency.
Mascarpone filling
In a saucepan, whisk together the cream, cornflour, agar agar and sugar well. Simmer over low heat until it thickens slightly, stirring constantly, 3-4 minutes.
Take off heat and whisk in the extract, Kahlua if using, and mascarpone. If not using Kahlua, perhaps add a tsp of coffee powder. Cool to room temperature, whisking often.