Mug Rice Krispy treat What you will need: 1 microwave safe mug ½ Tablespoon of butter ½ cup of mini marshmallows 1 c rice krispies Instructions: add butter to the mug and melt in microwave, maybe 10 seconds or until liquid. Add marshmallows and stir to coat. Return mug to microwave and heat for 20 seconds. Remove and stir until marshmallows are smooth, add rice krispies and stir well. Let cool and enjoy!