1-Minute Microwave Rice Krispies Treats in a Mug


The classic crisp, buttery Rice Krispie treat made mini! This tasty cereal treat only needs 3 ingredients and 1 minute in your microwave. So easy, fun to make and scrumptious!

1-Minute Microwave Rice Krispies Treats in a Mug – Just 3 ingredients! Tastes 10x better than the boxed treats. Thecomfortofcooking.com

Grab some crispy rice cereal, a few marshmallows, and a lil’ butter because we’re making something amazing today!

Look in my cupboards and you won’t find many sweets. I don’t usually keep them in the house, because I don’t have much self control when we have goodies! On the flipside, this has done me no good. Because I’ve only become more creative about satiating my sweet tooth. And that has meant mug cakes, cookies, and now a gooey, buttery Rice Krispie treat for one!

The perfect sweet ending to a long work (or school) week.

1-Minute Microwave Rice Krispies Treats in a Mug – Just 3 ingredients! Tastes 10x better than the boxed treats. Thecomfortofcooking.com

These mini microwave treats couldn’t be more fun to make! Unlike the traditional boxed Rice Krispie treats, the texture of this one is fluffy and sticky, not dense and overly chewy. You can really taste the sweet marshmallow and buttery goodness in every bite!

Just grab your 3 ingredients and a large microwave-safe mug. Zap your marshmallows (mini or full-sized work fine) and butter, then stir until smooth. Fold in the crispy cereal until well incorporated, and then just dig in!

You’ll love these super quick Rice Krispie treats made easily in your microwave. Try them this weekend!

1-Minute Microwave Rice Krispies Treats in a Mug – Just 3 ingredients! Tastes 10x better than the boxed treats. Thecomfortofcooking.com

1-Minute Microwave Rice Krispies Treats in a Mug

Servings 1 mug


  • 1/2 Tablespoon unsalted butter
  • 4 large marshmallows
  • 1/2 cup mini marshmallows
  • 1 cup Rice Krispies cereal


  • In a microwave-safe mug, microwave butter on high until completely melted. Add marshmallows and microwave for 20 seconds more. (Marshmallows will puff up, so be careful to not let them overflow from mug.) Remove from microwave and stir until smooth.
  • Stir in cereal until well blended.
  • Enjoy!

Join the Conversation

  1. I totally do this all the time, I just substitute Earth Balance for the butter to make it dairy free. :)

  2. How cute and genius are these? Bookmarking for those random crispy treat cravings (which I get more often than I care to admit ;)).

  3. This is such a great idea!
    I remember when I was little, granny would take a few marshmallows (one at a time) and place them on a square of baking parchment and have them in the microwave for seconds, to watch then puff-up and then I would eat it with a fork, racing with time as they went solid shortly after :P Fun times! A rice crispie treat though – clever :D x

  4. Definitely a treat and I can see happy faces all over the world from this recipe. :)

  5. This is a genius recipe! I have a feeling I will be making this way too much!

  6. You’re a GENIUS, woman!!! This looks so crazy fantastic!

  7. wait? what! I can do this! LOVE IT

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