Instructions
- Melt butter in a pan over low heat.
- Add marshmallows and stir until completely melted.
- Remove from heat.
- Work quickly and add rice krispies cereal to mixture, and stir until the cereal is well coated.
- Use a buttered spatula or waxed paper, press the mixture evenly into a 13x9x2 pan coated with cooking spray.
- When the treats are cooled, cut into squares.