Thought I did.
No Rice Krispies.
But I did have Lucky Charms.
Same recipe as on back of marshmallow bag.
3 or 4 T. butter. Melt in pan. Add 1 regular bag mini marshmallows. Stir until smooth. Take off burner. Add dry cereal. Mix. Butter hands and press into buttered pan. Eat. Yum!