DETAILS Serves: 10Prep: 1½ hours, plus chillingBake: 14 minutes YOU WILL NEED 30 x 40cm Swiss roll tin, greased, then lined (base and sides) with baking paper2 baking sheets, lined with baking paper INGREDIENTS For the sponge50g unsalted butter7eggs150g caster sugar1 tsp vanilla extract or paste50g plain flour40g ground almonds40g cocoa powder1 tsp baking powderpinch of saltFor the chocolate meringue ...