Stir about two heaped tablespoons of the egg whites into the chocolate mixture to loosen it, then gently fold in the rest with a metal spoon. Pour the mixture into the cake tin and bake in the ...
Mix icing sugar and lemon juice to make a thick pourable icing; once the cake is completely cold, drizzle the icing over. For chocolate bundt cake, replace 40g/1½oz of the flour with 40g/1½oz of ...