- 4 tablespoons salted butter, plus more for greasing
- One 10-ounce bag marshmallows
- 1/4 teaspoon salt
- 6 cups rice cereal
- 1 bag mini white marshmallows
- Rainbow sprinkles, to decorate
Thoroughly grease a 9- by 13-inch pan with softened butter.
Pour in the cereal, folding gently the whole time until all combined. Then pour in the mini marshmallows and gently fold in. Turn into the buttered pan and press flat. Immediately top with rainbow sprinkles.
Let cool completely, and then cut into squares.