6 mini mar bars or 3 large mars bars, and 2 and a 1/2 cups rice crispies.
How to make recipe for mars bar rice krispie cakes
At a low temperature, heat a saucepan on the hob. Place 50g of butter in the pan. While the butter melts slowly, chop the mars bars.
Place the mars bars in the pan. They will slowly melt. Use a wooden spoon to stir the butter and mars bars into a smooth paste. If it becomes too thick, add more butter.
Stir in the rice crispies, and then add the butter and mars bars. Put the rice crispy treats in 12 cups and place them in the refrigerator for 15 minutes. After 15 minutes, 12 rice crispy treats will be ready to go.