Mary Berry’s coffee and walnut Battenberg cake is a sweet take on the classic dessert

For the cake 100g margarine 100g caster sugar 2 free-range eggs 100g self-raising flour ½ tsp baking powder 50g ground almonds few drops vanilla extract 3 tsp milk 1½ tsp instant coffee powder 25g shelled walnuts, chopped For the coffee butter icing 100g icing sugar 40g butter, softened ½ tsp instant coffee powder 1½ tsp … Read more