- Step 1
Preheat oven to 180C. Lightly grease an 18 x 28 cm slice pan. Line base and sides with baking paper.
- Step 2
In a medium saucepan, combine sugar, butter, chocolate and water. Stir over low heat for 4-5 mins, until smooth. Transfer mixture to a medium bowl. Let cool for 10 mins.
- Step 3
Sift flours and cocoa together. Fold into the chocolate mixture along with the egg until well combined.
- Step 4
Spoon half the mixture into prepared pan. Drizzle with caramel. Carefully cover with remaining cake mixture.
- Step 5
Bake for 35-40 mins, until cooked when tested. Let cool in pan for 5 mins before transferring to a wire rack to cool completely. Cut into squares. Dust with cocoa. Store in an airtight container.
The caramel should be located where you purchase condensed milk in the supermarket.