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. One Rice Krispie Treat, just for you! Try my chocolate mug cake next.
One day, 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. Why? Who knows.
But my solution was to go the marshmallow route: 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).
Ingredients for Rice Krispie treat in a mug
- 1/2 Tablespoon unsalted butter
- 6 large marshmallows or 3/4 cup mini marshmallows
- 1/2 cup to 3/4 cup Rice Krispies cereal
Tips for making the best single Rice Krispie Treat
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.
- 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. I recommend a 12 ounce mug to have enough room for stirring and such.
- Use fresh marshmallows! I can’t emphasize this enough. If you try to use a bag of mini marshmallows that have been hanging out in the back of your pantry since last Christmas and have the texture of little doorstops, they’re not going to melt and it just plain won’t work. New, squishy and soft marshmallows are essential!
- And use fresh cereal, for that matter. Don’t use stale cereal either, because you will notice.
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.
Want more rice krispie treats?
- Fluffernutter Rice Krispie Treats
- Pumpkin Spice Rice Krispie Treats (Halloween Rice Krispie Treats)
- Easy Funfetti Rice Krispie Treats
- Mint Chocolate Rice Krispie Treats
- ½ Tablespoon unsalted butter
- 6 large marshmallows, or 3/4 cup mini marshmallows
- ½ to ¾ cup Rice Krispies cereal, dry
- In a microwave-safe mug (preferably 12 ounces) or small bowl, 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.1/2 Tablespoon unsalted butter
- 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.6 large marshmallows1/2 to 3/4 cup Rice Krispies cereal
- If you want to make a single serving Rice Krispie treat square, press it into a square shape on a plate and let it set for a few.
- Serve and enjoy!
The provided nutrition information is generated by an automatic API and does not take variations across specific brands into account. This information is provided as a general guideline and should not be treated as official calculations. Learn more here.
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