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This single serving Rice Krispie Treat is soft, chewy, and packed with buttery marshmallow goodness. Made in the microwave with just three ingredients, it comes together in minutes—perfect for a quick, homemade treat without leftovers.
Check out our quick and easy single serving and small batch no-bake desserts, like chocolate pie, cheesecake, chocolate-covered Oreos, and peanut butter balls.
Why You’ll Love This Recipe
- Fast & Simple: Ready in minutes with just a few steps.
- Just Three Ingredients: No long shopping list needed.
- Perfectly Portioned: A single treat with no leftovers.
- Microwave-Friendly: No stovetop required.
- Easy to Customize: Add mix-ins or toppings to make it your own
Rice Krispie Treats were a staple in my house when my kids were growing up—I made them all the time. Now, when I want just one, I make this single serve Rice Krispie Treat in the microwave. It has the same buttery, marshmallowy goodness but in a perfectly portioned size. It’s quick, easy, and made with just a few ingredients. I use a small dish, but a mug or any small bowl works too.
RELATED: The Best Cookie Recipes For One
Ingredients
If you have any ingredients leftover from this individual Rice Krispie Treat recipe, check out our Leftover Ingredients Recipe Finder.
- Butter: Use 1/2 tablespoon of salted butter. If using unsalted butter, add a pinch of salt while melting.
- Marshmallows: Use 1 cup of mini marshmallows or 8 large ones. Leftovers? Try them in Mini S’mores Dip or Ambrosia.
- Crispy Rice Cereal: Use 1 cup of Kellogg’s Rice Krispies or any crispy rice cereal for that classic crunch.
Recipe Variations
Customize your Rice Krispie Treat with these easy add-ins:
- Chocolate or Candy: Stir in mini chocolate chips or press M&Ms on top.
- Dried Fruit & Nuts: Mix in dried cranberries, raisins, or chopped nuts.
- Flavored Cereal & Coconut: Swap in a flavored crispy rice cereal or add shredded coconut.
- Add Lemon Curd: Top with lemon curd for a hint of citrus flavor.
RELATED: 15 Easy Dessert Recipes For One
How To Make A Single Serve Rice Krispie Treat
See the recipe box below for ingredient amounts and full recipe instructions.
To make a single Rice Krispie Treat, start by melting butter and marshmallows together in the microwave until soft and smooth. Stir in the crispy rice cereal, making sure it’s fully coated in the marshmallow mixture. Press the mixture into a buttered dish, spreading it evenly, then let it cool before enjoying.
No Microwave?
Melt the butter and marshmallows in a small saucepan over low heat, stirring until smooth. Then mix in the cereal and press into a dish as usual.
Expert Tips
- Avoid Overheating: Remove marshmallows from the microwave as soon as they melt to keep them soft and easy to mix.
- Stir Gently: Mix lightly to keep the cereal crisp.
- Press Lightly: Avoid packing too firmly for a soft, chewy texture.
Frequently Asked Questions
Yes. Double the ingredients, but you may need to microwave the marshmallows a few seconds longer to fully melt them.
A Rice Krispie Treat is best enjoyed right after you make it, but you can store it in an airtight container at room temperature for up to 2 days.
Ways To Use Leftover Ingredients
If you have leftover ingredients from this recipe, try using them in these single serving and small batch recipes, or explore our Leftover Ingredients Recipe Finder for more ideas.
If you’ve tried this single serving Rice Krispie Treat or any recipe from One Dish Kitchen, let me know what you think! Rate the recipe and share your thoughts in the comments below.
Also, if you take a picture please tag us on Instagram (@onedishkitchen) we’d love to see!
Rice Krispie Treat For One
Equipment
Ingredients
- ½ tablespoon salted butter
- 1 cup miniature marshmallows or 8 large marshmallows
- 1 cup crispy rice cereal
Instructions
- In a microwave-safe bowl, heat the butter and marshmallows for 30 seconds until melted.
- Stir in the crispy rice cereal until fully coated.
- Transfer the mixture to a small, lightly buttered dish and gently press it down with the back of a spoon.
- Let it cool before serving.
Notes
- Avoid Overheating: Remove marshmallows from the microwave as soon as they melt to keep them soft and easy to mix.
- Stir Gently: Mix lightly to keep the cereal crisp.
- Press Lightly: Avoid packing too firmly for a soft, chewy texture.
Nutrition
The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.
This is just the most perfect little treat and it literally takes just a few minutes to make!
I made this recipe but added 1/8 t. Vanilla extract to the melted marshmallows. I also used a lightly greased 2 x3 inch Ziploc container to make the treat a bit thicker.
Thanks so much for this and all your recipes Joanie, my 6 and 8 yr old boys love making one for each of them and they get to be decorate them with any kind of sprinkle they want. We usually split each into two servings, so dessert two nights in a row, yay! Love these!
I’m absolutely thrilled to hear that your boys are having a blast making their own Rice Krispie Treats! The idea to decorate them with their choice of sprinkles is just genius. It’s like a mini art project with a delicious outcome. Splitting each treat into two servings for dessert two nights in a row is a smart move! More to enjoy and it makes the fun last longer.
Just made this tonight with unsalted butter. I really appreciate the nutrition facts as I recently had to go on a renal diet and it has helped me find some fun things to cook and still eat appropriately. Especially since I rarely enjoy leftovers. Thanks Joanie. ❤
Simple, easy and super satisfying! I had the three simple ingredients on hand and am grinning from ear to ear with happiness over the satisfying taste and crunch! Boy have I missed Rice Krispie treats! I’ll be making again!
I’m so happy you enjoyed the rice krispies treats!
This was great and simple too. My 7 year old grandson was over and was able to make this. (Yes, I oversaw his efforts.) I buy those variety packs of cereal and we used one of those bags. (32 grams/1.12 ounces) It was a scant cup but worked fine. We used Cocoa Puffs. Next we’ll try Golden Grahams and throw in some mini-chips.
Add a tsp of peanut butter to the marshmallow mix while melting then add rice cereal-gives it some flavor. To get really crazy throw in a tblsp of mini chocolate chips after it’s all mixed but not too hot. Press into dish as usual.
kinda blah with the missing vanilla! otherwise, this is a great recipe!
Nice simple recipe for one or two ….
Thank you, Christina.
I am so happy I found this recipe! I love Rice Krispie treats, but since I live alone, I never make them because I don’t want to eat the whole pan myself. Now that won’t be a problem. The only possible problem I can see is I might make this recipe to often 😊
Hi Laura, I love this recipe so much and for the exact same reasons you do. It’s great for portion control and with Rice Krispies treats, I have absolutely no will power. This mini size is perfect for me 🙂 Thank you so much for letting me know like the recipe.
Love the concept of cooking for one. Kids grown and out of house. Ex-wife moved on. Not found of fancy foods or left overs. Have freezed extra food but except for soups things get thrown out(my dogs love leftovers.). Thanks again.
Thank you so much! I always had to make a big batch, for the “grandkids”. But Mimi always ended up eating most of them! This is sooooo perfect. I added a little bit of vanilla after I mixed it all up.