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- 200 g (7oz) unsalted butter, plus extra to grease
- 200 g (7oz) good quality dark chocolate (at least 70% cocoa), broken into pieces
- 300 g (11oz) caster sugar
- 4 medium eggs, lightly beaten
- 2 tsp. vanilla extract
- 100 g (3 1/2oz) plain flour
- 50 g (2oz) cocoa powder
- 100 g (3 1/2oz) seedless strawberry jam
- 100 g (3 1/2oz) smooth peanut butter
- 16 jammie dodgers
- Step 1
Preheat oven to 170°C (150°C fan) mark 3. Grease and line a 23cm (9in) square tin with baking parchment.
- Step 2
Put the butter and chocolate in a heat-proof bowl set over a pan of barely simmering water and stir frequently, until melted and smooth (alternatively, microwave in 30sec bursts). Take off the heat. Beat in the sugar, then the eggs and then the vanilla with a wooden spoon. Sift over the flour and cocoa powder and stir to combine.
- Step 3
Tip the mixture into the prepared tin. Stir the jam in a small bowl to loosen it, then dot teaspoonfuls of the jam and the peanut butter evenly over the top of the batter. Marble them together by swirling a cutlery knife through the mixture. Arrange the biscuits neatly in rows on top.
- Step 4
Bake for about 35-40min, carefully covering the tin with foil halfway through the cooking time to stop the biscuits from browning too quickly. The brownies are ready when the batter is risen and there is no wobble left when you gently shake the tin. Allow to cool completely in the tin before cutting into squares and serving (see GH Tip).
GH Tip
To get neat slices from your brownies, after they’ve cooled to room temperature, chill for 1hr to firm up, then cut. Allow brownie slices to come up to room temperature before serving.
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Per Serving:
- Calories: 419
- Fibre: 2 g
- Total carbs: 49 g
- Sugars: 37 g
- Total fat: 22 g
- Saturated fat: 11 g
- Protein: 6 g

The GH Kitchen Team are Good Housekeeping’s resident recipe developers and all-round food obsessives. GH Kitchen Director Sarah Akhurst is our resident hosting pro and loves nothing more than putting on a foodie feast for friends. Our GH Kitchen Manager Linzi Pucino is our very own Italian food expert (originally hailing from the North East of Scotland!) and can be found working her way through midweek recipes that cover all bases, from haggis to ragu! Our Kitchen Editor Nadine Brown loves digging into the stories behind her favourite foods and enjoys applying her eclectic tastes to more modern, flavour-forward recipes - just don't give her too much chilli! Our Junior Food Content Produce Frankie Prichard combines a love of beautiful presentation and flavour-led, seasonal cooking in her recipe development, along with a passion for bringing people together through food. With a wealth of professional kitchen experience between them, they’re dedicated to ensuring every Good Housekeeping recipe is the best it can be, so you can trust they’ll work every single time
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