This is incredibly delicious!
400 g butter, chopped
400 g good quality dark chocolate, chopped
1/2 cup cocoa powder
2 cups caster sugar
6 eggs, lightly beaten
1 1/2 cups self-raising flour
2 x 60 g Mars Bars, chilled & chopped

Preheat oven to 160 degrees C. Grease a 4cm deep, 22 cm x 28 cm base pan. Line bottom and two sides with non-stick baking paper.

Combine butter and chocolate in large heatproof microwave safe bowl. Microwave uncovered on Medium High for 3-4 minutes, stirring every minute, or until almost melted. Add cocoa and whisk until smooth.

Add sugar and mix well. Add one third of egg and stir to combine. Repeat with remaining egg. Sift the flour over chocolate mixture . Stir gently until just combined.

Pour mixture into prepared pan. Sprinkle Mars Bar over batter and press in slightly. Bake for 60-65 minutes until a skewer inserted into the centre has moist crumbs clinging.

Cool completely in pan (this is the hardest part of the entire recipe! It requires great self control not to devour it immediately) then cut into squares. Very nice on its own, or served slightly warm with whipped cream.

Enjoy!