A very rich chocolate roll cake
For the chocolate sponge:
- 4 large eggs (or 5 medium)
- 100g sugar
- 65g flour
- 1 tsp baking powder
- 30g cocoa powder
For the chocolate ganache topping:
- 200ml cream
- 225g dark chocolate, broken into small pieces
- Knob of butter
For the cream filling:
- 100ml cream
- 2-3 drops vanilla (optional)
- 10g icing sugar (optional)
Makes 2 small or one large log.
- Heat oven to 190C.
To make the chocolate ganache:
- Break or cut up the chocolate into small pieces and place in a bowl with the butter.
- Heat the cream till it starts to boil and then pour over the chocolate and mix until all the chocolate has melted.
- Leave to cool in the fridge for 1 hour.
To make the chocolate sponge:
- Butter and line the base and sides of a Swiss roll tin with baking parchment.
- Separate the eggs into two large mixing bowls.
- Add the sugar and 2 tbsp water to the egg yolks.
- Whisk the sugar and yolks together
- Sift in the flour, baking powder and cocoa, and then fold in lightly.
- Using a clean whisk, beat the egg whites until they are stiff, then fold into the cake mixture in 3 batches.
- Pour the mixture into the prepared tin, and carefully spread to the edges.
- Bake for 10-12 mins, or until the cake feels firm to the touch.
- Put a large sheet of baking parchment on a chopping board.
- Turn the cake out and cover with a sheet of baking parchment, while still warm roll loosely then leave to cool.
To make the cream filling:
- Whip the cream (and vanilla and icing sugar if using) in a bowl until stiff.
To assemble the roll cake:
- Carefully unroll the cake, and peel off the paper but leave one sheet underneath.
- Spread the cream filling over the top.
- Roll up the cake again using the paper to help you.
- Cover the cake with the chocolate ganache.
- Use a fork to create a bark effect.
- Transfer to a serving plate. Just before serving dust with a little icing sugar to look like snow.
Put a spring of holly on top – thanks to one of the participants for bringing some on the day. I haven’t seen holly in Japan…