Lemon Supreme Rice Krispies Treats

I’ve been on a lemon kick lately. I’m pretty sure it’s because warm weather is finally coming. One of my favorite things to drink is lemonade. When thinking about lemonade I think of refreshing and that’s exactly what these rice krispies treats are. No matter the temperature outside, when you bite into one of these bad boys it will feel like it’s the middle of summer.

Lemon Supreme Rice Krispies Treats
A delicious rice krispies treat jam packed with lemon flavor.
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  1. 4 and 1/2 tbs. butter
  2. the zest of 1 lemon
  3. the lemon juice of 1 lemon
  4. 1 and 1/2 bags of marshmallows (10oz. bags)
  5. 2/3 cup Duncan Hines Lemon Supreme cake mix
  6. (I believe Duncan Hines has the most flavor)
  7. 6 cups Rice Krispies Cereal
  1. Prepare a 8×8 inch or 13×9 inch pan with shortening; set aside.
  2. In a large saucepan melt butter over low heat with the lemon zest and juice.
  3. Add in marshmallows and stir until completely melted.
  4. Slowly stir in the dry cake mix.
  5. Once combined remove from heat and stir in the cereal.
  6. Using greased spatula press mixture into greased pan.
  7. Cool on the countertop for approximately 30 minutes.
  8. Enjoy!
Sweet as a Cookie
If you like this recipe check out my other favorite recipes.



  1. OMG I am drooling Karissa! LOVE these.

  2. I LOVE the added lemon in these treats! Brilliant!

  3. My boss found me some Lemon Meringue marshmallows by campfire.
    I’m gonna try rice crispy treats with them.

  4. I can’t find any Duncan Hines cake mix in Australia, could you suggest an alternative? Thanks, Amy

    • Hi Amy,
      Any brand will work. I just find Duncan Hines lemon to have the most flavor.
      If you can’t find any lemon cake mix try using a white cake mix with the zest of 3 lemons
      and also the juice from those 3 lemons. Hope this helps!
      Let me know how they turn out :)

  5. I am all for feeling like it is the middle of summer!! Cake mix krispies are so much fun to play with. Love this lemon one you created!!!

  6. Anonymous says:

    Do these Krispy Treats stay soft?

    • Yes, if you put them in a sealed container or wrap them in plastic wrap they should stay soft. Mine are still very soft today and I made them Monday. :)

  7. Anonymous says:

    Lemon is my favorite flavor and I cannot wait to try this recipe! It will surely be a hit this summer. Thanks for “fancy-ing” up Rice Krispie treats!

  8. Anonymous says:

    Are the marshmallows Mimi or regular size? I want to make these next week. We lose Rice Krispies treats, and these sound like CROWD PLEASERS!

  9. Anonymous says:

    OMG! 2 of my favorite things combined! Thanks for the recipe, cant wait to try it!

  10. My daughter made these for me to take to a party. They were a HIT! Everybody loved them. I was sad that I hardly had any left to take home, heeheehee. Definitely will be making these again. Thank you for the recipe!

  11. Anonymous says:

    Would it work without the lemon cake mix? I would like to make them gluten free.

    • It won’t have as much flavor but you can make them without the cake mix and use the zest of 4 lemons and the juice from 4 lemons. I hope you like them :)

  12. Oh, thanks for gluten free option! I was wondering how I could do that. Good thing I just bought a zester! My kids are home sick so I’m happy to induct them into the beautiful world of rice crispy treats!

  13. Anonymous says:

    Just made these for my sisters birthday, she loves all things lemon , instead of her usual lemon bars I make her I made her these, of course I had to have a sample. Can I say OMG!!! DELISH

  14. Is it REALLY 4 1/2 pounds of butter?

    • Anonymous says:

      I’m going to try making these for the upcoming Memorial holiday weekend. They sound delicious. Recipe indicates 4 1/2 tbs (tablespoons) of butter; not pounds. :)

  15. Anonymous says:

    There are gluten free cake mixes that might be worth a try.

  16. These look good. Found you via Our Family World. I am going to host a link up party on 8/1/11 for Easy Meal Planning. Would love for you to link up one of your recipes. My latest post mentions a little bit about the link up.

  17. Angela Durden says:

    I could never again, in good faith or conscience, eat a Rice Krispie treat in any other way than this. This recipe is divine!!!

    • Karissa Krishart says:

      To be honest at first I thought this was going to be a rude comment, haha. I’m so glad you liked them Angela :)

  18. Vanessa says:

    I wanted something other than cake for my birthday. One of my favorite things while pregnant is Rice Krispie treats.Since I’m preggo on my bday- this fit the bill!! OMG, nom nom nom.. Thanks for the yummy twist on a classic treat!!

  19. I just made your lemon Rice Krispie treats and they are wonderful. Thank you so much for sharing

  20. Lacey English says:

    I am going to try making these for my sister’s birthday this weekend – she loves lemon! Just another tip: if you can’t find Lemon Cake Mix, just add 1 pkg of dry lemon pudding mix to a vanilla/white cake mix.

  21. Miss Karissa,
    I made these this morning. OMG (I don’t speak thusly, but I will now). I made a batch, waited a short time then cut two squares, one for me and one for DH. He picked his up set it down and said I will have to wait until this sets up. I with a mouthful (another thing I do not normally do) said it won’t change the taste any. He picked it up again and started to eat it. I walked away, went about my business, but they kept calling me. So as I am passing through area DH is in, he holds up his plate and say I wouldn’t be adverse to tasting another one of these. Oh said I, I thought you were waiting for them to set up. So right now of a 9×12, have eaten 1/2 the pan minus two squares. OMG these are to die for. Thank you for putting these out there.

  22. Made these this afternoon, and ooooh my goodness!! I love all things lemon, and I have to say, this is one tasty lemon treat!!

  23. DubNDub says:

    I was excited to find these. I replaced the cake mix with 2 packs of instant lemon pudding. Will see what the volunteers think. Thank you.


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