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Double decker chocolate brownie

Silvena Rowe from Food Uncut
Silvena Rowe's decadently gooey brownie is marbled with a delicate mascarpone cream flavoured with scrumptious white chocolate

Double decker chocolate brownie

Method

1. Grease a 23cm square cake tin and line it with baking parchment. Preheat the oven to 180C/gas 4.

2. For the chocolate brownie base, gently melt the chocolate in a bowl set over a pan of simmering water and allow it to cool slightly. Meanwhile, put the butter and sugar in a mixer and beat together until the mixture is smooth, pale and creamy. Add the eggs one at a time, mixing well after each addition.

3. Remove the bowl from the mixer and add the cooled, melted chocolate. Sift the flour and baking powder straight into the bowl and gently fold together until evenly combined. Set aside.

4. For the white chocolate layer; gently melt the white chocolate in a bowl set over a pan of simmering water and allow it to cool slightly. Meanwhile whisk the mascarpone briefly in the mixer to soften, then add the egg yolk and continue beating until the mixture is smooth and creamy. Add the flour then, with the mixer still running, add the melted white chocolate.

5. Pour about two-thirds of the chocolate brownie mixture into the prepared cake tin. Swirl the white chocolate mixture over the top, gently pushing it into the brownie base as you go.

6. Spoon the remaining third of the chocolate brownie mixture on top, swirling it into the white chocolate layer. Use a skewer or fork to zig-zag across the surface to accentuate the wave effect.

7. Bake for 20 minutes to give a moist and gooey centre. Leave the cake to cool in the tin, then cut into squares and serve.

Cook's Notes
Use a piping bag to pipe the white chocolate mixture over the brownie base if you prefer.

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Serves: 16-20 pieces

Prep: 25 min
Cook: 30 min

Ingredients

For the chocolate brownie base

250g dark chocolate, 70% cocoa solids
100g Butter, softened, plus extra for greasing cake tin
200g caster sugar
2 Eggs
150g plain flour
1 tsp Baking powder