from Miss Liss on CLBB
4 Mars Bars (3 Musketeers)
3 Tbsp butter
3 cups rice bubbles (rice krispies)
Grease and line slice tin (9×13 brownie tin) with baking paper or plastic wrap.
Melt Mars Bars with butter (you can do this in the microwave) and mix with rice bubbles.
Pour mixture into tin and press down evenly.
Let slice set in the fridge.
Remove slice from tin and cut into pieces (allow it to sit out for a few minutes before cutting otherwise it will crack).