01 -
Grease a 9x13-inch pan with butter or non-stick spray.
02 -
Melt the butter over low heat in a large saucepan. Add marshmallows and stir until melted and smooth.
03 -
Quickly mix in the Franken Berry cereal until fully coated with the marshmallow mixture.
04 -
Press the mixture into the prepared pan using a greased spoon or hands.
05 -
Let the Krispies set at room temperature for 15-30 minutes. Cut into squares and serve.