Method
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1
Preheat the oven to 180°C (350°F) and line a 9x13 baking pan with baking paper and set aside.
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2
In a medium sized saucepan, melt the butter and condensed milk together. Once melted remove from the heat and stir in the brown sugar and vanilla extract.
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3
Stir through the cocoa, flour and baking powder and then stir through the white chocolate chips. Pour into the prepared baking pan.
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4
Bake for around 30 minutes or until the sides are set and the middle has the slightest wobble.
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5
Serve warm or place in the fridge to become ultra chewy!