If you’ve ever needed a no-fuss dessert that looks impressive, tastes like a dream, and comes together in minutes, this ...

20g/¾oz unsweetened chocolate, 100% cocoa solids 450g/1lb pastry cream (crème patissière), at room temperature (see Top recipe tip below) 1 tbsp strong cocoa powder , sifted ...

Immediately pour the warm cream over the chocolate and allow to sit for 1 minute before whisking until smooth. Pour the ganache over the chilled cake, smoothing with a spatula. Using a spoon ...