Rice krispies treats with homemade marshmallows

I don’t know what is wrong with me. After I made homemade marshmallows, I actually had some left over. Even after snacking on some here and there, I still had some floating around the house. That takes a lot of self restraint, people, even though I normally am not a fan of marshmallows. I mean, these things were good.

I also had some crispy rice cereal leftover (what’s up with me and leftovers?!) from the chocolate chip cereal bars. I put on my thinking cap… marshmallows, crispy rice cereal.  Duh – rice krispies treats! Since I only had a few homemade marshmallows left, I knew I wouldn’t be able to make a full batch that thousands of blogs feature. I had to set out and make my own mini version.

Because I was limited in the amount of marshmallows I had, I only needed 2 cups of the crispy rice cereal. They spread out pretty thin in my pan, but I’ll just call that portion control. I do love thick rice krispies treats, but the thin ones tasted just as good.

If you ever find yourself with some leftover homemade marshmallows, you can certainly make this recipe. Otherwise, feel free to make it the old fashioned way with the store-bought kind. Both versions are good!

Rice krispies treats with homemade marshmallows
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5 from 1 vote

Rice krispies treats with homemade marshmallows

Everyone loves a good rice krispy treat. Make your own with homemade marshmallows!
Prep Time5 minutes
Cook Time10 minutes
Total Time15 minutes
Course: Dessert
Cuisine: American
Keyword: Bars
Servings: 12
Author: Eva Bakes


  • 1 Tablespoon butter
  • 10 homemade marshmallows about 1-inch squares
  • 2 cups crispy rice cereal


  • Butter (or add baking spray to) an 8x8 pan.
  • Over medium heat, melt the butter and marshmallows in a tall nonstick pot. Stir until the mixture is uniform and is thoroughly combined. Turn off the burner and add the crispy rice cereal. Stir until the marshmallow mixture is fully incorporated with the cereal.
  • Evenly spread the cereal mixture into the pan and press down with your spatula (may need to oil it to prevent it from sticking).
  • Let the treats harden for at least 20 minutes. Cut into bars and serve.


Homemade marshmallows from here
Source: Adapted from The Gluten Free Lab


  1. Anonymous
    April 12, 2012 / 11:30 pm

    can marshmallow creme be used to make rice krispie treats?

    • Eva
      April 13, 2012 / 12:50 am

      I haven't tried it but imagine that the treats might be a bit gooey since the marshmallow creme won't solidify completely. You could try setting it in the fridge. Let me know if you try it!

  2. Anonymous
    May 21, 2012 / 6:08 am

    nice idea.. thanks for sharing.

  3. MaggieMae
    March 5, 2014 / 2:14 am

    Can you use the marshmallow straight from the bowl instead of doing the whole process of making the actual cut marshmallows?

    • Eva
      March 5, 2014 / 2:46 am

      I have never tried it but think it should work. When making Rice Krispies treats, you are melting the marshmallows back into liquid form, so I think you should be ok. Let me know how it turns out if you try it!

  4. MaggieMae
    March 5, 2014 / 2:15 am

    Can you use the made marshmallow straight from the bowl instead of the whole process of turning the marshmallow into ready to eat ones?

    • June 23, 2022 / 11:52 pm

      5 stars
      I didn’t look to see your homemade marshmallow recipe but I’m assuming it is basically the same as mine. When finishing making them I add 1 T. Butter to the still warm marshmallow and then mix in the rice crispies. They are fantastic! I am in the tropics (South Pacific) so humidity is high and I don’t have a problem with them drying out. You may have to adjust if in a dry place.

      • evabakes
        June 24, 2022 / 6:57 am

        Ooh – what a great idea! I have not tried this yet since I don’t use freshly made marshmallows but this is fantastic!

  5. Stacey R-M
    December 11, 2020 / 6:06 pm

    They end up so stale, my husband is allergic to something in store bought marshmallows so i make my own, but everytime i add it to rice crispy treats or MMF it goes wrong and stale

    • evabakes
      December 11, 2020 / 6:18 pm

      Oh no! I’m sad to hear that hour treats go stale. How are you storing them?

  6. Micah
    October 20, 2022 / 12:42 pm

    This hardly even covered the bottom of the 8×8 pan. Did I do something wrong? Also, the treats were very soggy. My marshmallow recipe is 1c water, 3.5TBL gelatin powder, 1/2tsp vanilla nd 1/3c maple syrup. Maybe there is a better mallow recipe to use?

    • evabakes
      October 21, 2022 / 8:23 am

      How much marshmallow did you use in your batch? The homemade marshmallows I used is a similar recipe to yours, but I only used 10 squares of marshmallows and not the whole batch. Maybe that’s what could have caused yours to be soggy?

  7. Kirsten
    October 21, 2022 / 8:28 pm

    Here is my recipe – it has been fantastic!
    1. Bloom gelatin in water, in mixer bowl (1/2 c. water and 7t. gelatin)
    2. Mix 2 c. sugar and 2/3 c. water in small pan and boil till 240-245 degrees.
    3. Once sugar syrup stops bubbling pour slowly into mixer (with gelatin in it). Beat 5-6 minutes till tripled in size. Add 1t. extract flavor of your choice. Beat 30 seconds.
    4. Butter 9×9 pan. Scoop fluff into pan. Sprinkle with 50/50 mix of powdered sugar and cornstarch

    • evabakes
      October 22, 2022 / 6:32 am

      Thanks for sharing this, Kirsten!

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