The recipe
Why it earned the handshake
This is a Black Forest gâteau made to behave like an everyday traybake: cocoa and espresso deepen the sponge, fresh cherries keep it bright, and kirsch brings the familiar grown-up note. The little chocolate decorations are optional in spirit but lovely in practice. The tent may reward drama; Dan’s slice wins by making the drama easy to share.
Ingredients
Sponge
- 175g plain flour
- 25g cocoa powder
- 5ml espresso powder
- 5ml baking powder
- 175g unsalted butter
- 200g light brown sugar
- 5ml vanilla extract
- 3 large eggs
- 200g cherries, pitted and quartered
- 25g 70% dark chocolate, finely grated
- 16 cherries in kirsch, drained
Decoration, Chantilly, and syrup
- 75g 54% dark chocolate
- 1g pure cocoa-butter powder
- 300ml double/heavy cream
- 50g confectioners’ sugar
- 5ml vanilla bean paste
- 30ml superfine/caster sugar
- 30ml kirsch
You will also need a 25cm square pan, a thermometer, piping bags, and acetate or parchment.
Method
- Heat the oven to 200°C/180°C fan. Grease and line the square pan. Sift the flour, cocoa, espresso, and baking powder together.
- Beat the butter and brown sugar until light and fluffy. Beat in the vanilla, then the eggs one at a time. On low speed, mix in the flour mixture and then the quartered cherries.
- Level the batter in the pan and bake for 20 minutes, until a skewer comes out clean. Cool in the pan for 10 minutes, then finish cooling on a rack.
- Temper the 75g chocolate: melt it over simmering water to 45°C, cool to 34°C, then stir in the cocoa-butter powder and bring it to 31°C. Pipe 16 small decorations onto acetate or parchment and leave them to set for at least 30 minutes.
- Whip the cream with the confectioners’ sugar and vanilla until it holds a soft peak. Chill it. Warm the caster sugar and kirsch gently until the sugar dissolves, then cool the syrup.
- Pierce the cooled cake with a cocktail stick and brush it with the kirsch syrup. Reserve one third of the Chantilly in a star-nozzle piping bag. Turn the cake top-side down, spread the rest of the cream over it, grate the 25g chocolate over the cream, and cut into 16 squares.
- Pipe a swirl of cream onto each square. Finish each with a kirsch-soaked cherry and a chocolate decoration.
Baker’s tips
- Cool the cake completely before brushing on syrup; a warm crumb can turn the neat traybake soggy.
- Tempered chocolate is a concentration exercise. If the temperatures feel like too much, use melted chocolate decorations and call them rustic rather than pretending they are tempered.
- Keep the Chantilly cold until the last minute, especially in a warm kitchen.
Make-ahead
Bake the sponge and make the chocolate pieces a day ahead. Assemble with cream and cherries close to serving.
Source: Dan’s Black Forest Slice, The Great British Bake Off








