Step 1

Preheat oven to 180C.

Step 2

Crush biscuits and then add melted butter. Mix to combine and press into the base of a slice tin. Arrange Mars Bar pieces on top of biscuit base.

Step 3

Pour the condensed milk evenly over the base.

Step 4

Bake in the oven for 25 to 30 minutes, until golden and bubbly. Allow to cool and refrigerate.

Step 5

Melt the dark chocolate in the microwave on a medium setting (450 watts) in short 10 second bursts, stirring between bursts. Spread chocolate over the slice. Allow to sit until the chocolate sets. Then cut into pieces.