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Single Serving Rice Krispie Treat in a Mug

Have a craving for Rice Krispie Treats, but don’t want to make a whole pan of them? This Rice Krispie Treat in a mug is single serving and needs only 3 ingredients, 2 minutes and a microwave! Try my chocolate mug cake next.

A spoonful of Rice Krispie treat in a white mug being pulled out to show the melty marshmallow

I talked a little in my last post about how weird it feels to get the urge to make something and know you probably can’t just run out and get it these days.

Last week (but really, what even is time?) I discovered that I didn’t have any dark chocolate and with the way I reacted to it, you would have thought someone told me a dinosaur had eaten my car.

I welled up with tears and got unreasonably upset and just sat on the floor of our pantry for a good 10 minutes.

That said… I’ve decided there’s nothing wrong with feeling a little trapped by inconvenience. Even the smallest things might feel like a big deal right now, and that’s okay.

I’m not going to beat a dead horse, so I’m just going to say that I hope you are comfortable, safe, healthy, and have all the essentials that you need to get through this weird and crazy time.

One of the things I’ve been doing is trying to keep a routine for some sense of normalcy, but also finding ways to mix things up so I don’t feel so trapped and isolated.

My solution this week? A single serving Rice Krispie treat in a mug.

This recipe is great for people who:

  • Live alone and can’t justify making an entire pan of Rice Krispie treats right now
  • Just want a single serving Rice Krispie treat to satisfy a craving in the moment
  • Don’t feel like putting the effort in for a full pan recipe
  • Need something sweet. Like, right now.
  • Need a reprieve from that box of stale Girl Scout cookies in that flavor it turns out you don’t love (no that hasn’t happened to me).

Tips for making Rice Krispie Treat in a mug

This recipe is very simple, and would even be good to make with kids because you don’t need to use an oven or mess with any complicated steps.

Four photo collage showing the process of making rice krispie treat in a mug
  • Melt 1/2 tablespoon butter in a mug first, swirl it around, then add marshmallows and heat again. This way the butter kind of acts as a non-stick spray and makes it easier to stir the ingredients together.
  • Only add 1/2 cup of Rice Krispies cereal at first, then add more if you want it to be thicker. I prefer my ratio of cereal to marshmallow to be more marshmallow-heavy, but to each their own. This ratio is also easier to eat with a spoon.
  • Also, make sure to use a large enough mug that the marshmallows don’t overflow. The smallest mug I use is an 8 ounce capacity, and you still see the marshmallows expand up over the top for a couple seconds, but they come right back down into the mug once it stops heating.
Mini marshmallows expanding out the top of a white mug in the microwave

Want a single serving Rice Krispie Treat square?

Easy. If you want to straight up make it a single serving Rice Krispie treat bar, make it the same way and then just press it into a square shape on a plate and let it set for a few.

Boom! Single serving handheld Rice Krispie treat.

Overhead shot of Rice Krispie Treat in a white mug with marshmallows on a white wood surface

After you’ve made this recipe, please leave a comment below with a rating – and if you came from Pinterest, add a photo to the Pin of what you make to the pin to share your experience!

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A spoonful of Rice Krispie treat in a white mug being pulled out to show the melty marshmallow

2-Minute Rice Krispie Treat in a Mug


  • Author: Leslie Kiszka
  • Prep Time: 1 minute
  • Cook Time: 1 minute
  • Total Time: 2 minutes
  • Yield: 1 serving 1x

Description

Have a craving for Rice Krispie Treats, but don’t want to make a whole pan of them? This Rice Krispie Treat in a mug is single serving and needs only 3 ingredients, 2 minutes and a microwave!


Ingredients

Scale
  • 1/2 Tablespoon unsalted butter
  • 6 large marshmallows (or 3/4 cup mini marshmallows)
  • 1/2 cup – 3/4 cup Rice Krispies cereal, dry

Instructions

  1. In a mug, add butter and microwave for 15-20 seconds or until just melted. Tip the mug slightly to the side and roll the melted butter around to coat the edges a bit.
  2. Add marshmallows and microwave again for 30 seconds. Carefully remove from microwave and stir to combine. Immediately add Rice Krispies cereal and stir to combine. Start with 1/2 cup, then add up to another 1/4 cup more if you’d like it thicker.
  3. Serve and enjoy!

Notes

Cereal to marshmallow ratio: Start with 1/2 cup of Rice Krispies cereal at first, then add more if you want it to be thicker. I prefer my ratio of cereal to marshmallow to be more marshmallow-heavy, and it’s also easier to eat with a spoon.

Mug size: You want your mug to be at least 8 ounces.

Microwave wattage: My microwave is 1500 watts, so you may need to adjust your time to be less or more depending on the wattage of your microwave.

  • Category: Dessert
  • Method: Microwave
  • Cuisine: American

Keywords: rice krispie treat in a mug, single serving rice krispie treat, quick rice krispie treat, microwave rice krispie treat, microwave dessert

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Let us know what you think!
Recipe rating

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Suzanne

Monday 1st of March 2021

One of my best friends made me a platter of rice krispy treats for my baby shower, ALL mine! Never mage them myself. This is very close to hers! Thank you & yum!

Leslie Kiszka

Tuesday 2nd of March 2021

I'm so glad you like it - and this will always be all yours, too! :)

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