In a medium saucepan, combine 4 cups of marshmallows and 2 tablespoons of butter over low heat. Stir constantly for about 5–7 minutes until completely melted and smooth.

Remove the saucepan from heat and immediately add 6 cups of Fruity Pebbles cereal. Gently fold until the cereal is coated.

Lay a large piece of parchment paper on a clean surface and transfer the mixture onto it, flattening it into a rectangle about ½ inch thick.

Starting at one edge of the parchment paper, roll the flattened mixture tightly into a log shape.

Transfer the rolled sushi to the refrigerator and let it chill for about 30 minutes. Once set, slice into bite-sized pieces.

Arrange the colorful slices on a serving platter and enjoy fresh for the best chewy texture!