Chocolate and Vanilla Marble Loaf

Mary Berry's pretty, indulgent chocolate and vanilla marble loaf makes a perfect British tea-time treat. The light sponge and sweet icing work perfectly together.

Introduction

This loaf cake looks spectacular and is lovely for a special occasion. It easily slices into ten.

Serves 10
Easy

Ingredients

225g (8oz) butter, softened
225g (8oz) caster sugar
275g (10oz) self-raising flour
2 level tsp baking powder
4 large eggs
2 tbsp milk
½ tsp vanilla extract
1½ level tbsp cocoa powder
2 tbsp hot water
For the icing:
25g (1oz) butter
15g (½oz) cocoa powder, sifted
1–2 tbsp milk
100g (4oz) icing sugar, sifted
About 25g (1oz) white chocolate, melted

Essential kit

You will need a 900g (2lb) loaf tin, 17 x 9 x 9cm (6½ x 3½ x 3½in) base measurement. You will also need a hand-held electric mixer.

Instructions

Preheat the oven to 160°C/Fan 140°C/gas 3. Lightly grease a 900g loaf tin and line with a wide strip of non-stick baking parchment to go up the wide sides and over the base of the tin.

Measure the butter, sugar, flour, baking powder, eggs, milk and vanilla extract into a large bowl and beat with a hand-held electric mixer for about 2 minutes, until well blended. Spoon half the mixture into another bowl and set aside.

In a small bowl, mix the cocoa powder and hot water together until smooth. Allow to cool slightly, then add to one of the bowls of cake mixture, mixing well until evenly blended.

Spoon the vanilla and chocolate cake mixtures randomly into the prepared tin until all of the mixture is used up, and gently level the surface. Bake for 50 minutes–1 hour, until the cake is well risen, springy to the touch and beginning to shrink away from the sides of the tin. Allow to cool in the tin for a few minutes, then turn out onto a wire rack, peel off the lining paper and leave to cool completely.

To make the icing, melt the butter in a small pan, add the cocoa powder, stir to blend and cook gently for 1 minute. Stir in the milk and icing sugar, then remove from the heat and mix thoroughly. If necessary, leave the icing on one side, stirring occasionally, to thicken. Spread the cold cake evenly with the icing, then drizzle the melted white chocolate over the top. Leave to set.

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