Step 1

Preheat the oven to 180°C (350°F) and line a 9"x13" baking pan with baking paper and set aside.

Step 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.

Step 3

Stir through the cocoa, flour and baking powder and then stir through the white chocolate chips. Pour into the prepared baking pan.

Step 4

Bake for around 30 minutes or until the sides are set and the middle has the slightest wobble.

Step 5

Serve warm or place in the fridge to become ultra chewy!