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    Home » Recipes

    Shamrock Rice Krispie Treats

    Published: Mar 12, 2021 · Modified: Feb 28, 2023 by Emily · This post may contain affiliate links · 22 Comments

    Make these Shamrock Rice Krispie Treats for your St. Patrick's Day celebration or just for fun! They are easy to make and kids and adults will love to decorate and eat them. These green desserts are perfect for a school treat, the office, or a party!

    shamrock-rice-krispie-treats-on-a-plate
    Jump to Recipe

    These Shamrock Rice Krispie Treats are perfect for St. Patrick's day and are so fun to make! My recipe uses lime and lemon-flavored marshmallows for a spin on the original recipe, but you can always use regular marshmallows instead.

    If you are looking for more green desserts, check out my Oreo Mint Ice Cream Pie, Pistachio Macarons, and my Lucky Charms Green Martini!

    How To Make Shamrock Rice Krispie Treats

    1. Prepare a 9x13 pan with non-stick spray. Melt the butter in a large pot over medium heat. Add the marshmallows and stir until fully melted in the butter. Stir in the green food coloring.
    2. Remove the pot from the heat and stir in the rice cereal. Add to the prepared dish and press into the pan as much as you can. Place the pan in the fridge for 10 minutes to cool.
    3. Turn the pan upside down on top of a cutting board or counter. Use the cookie cutter to cut out as many shamrocks as you can.
    4. Use gel frosting and sprinkles to decorate the shamrocks with fun faces. Enjoy!
    shamrock rice krispie treat with a frosting and sprinkle face

    Tools Needed to Make These St. Patrick's Day Treats

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    Tips for Making Rice Cereal Shamrocks

    • You can use regular marshmallows instead of lime and lemon-flavored marshmallows. Below is a photo of the marshmallows I used. You do have to separate the flavors, but my son and I had fun doing it!😁 bag of fruit marshmallows
    • If you want your treats to have more flavor but don't have flavored marshmallows, try adding lime extract, almond extract, or vanilla extract!
    • Make sure you use non-stick spray on your pan so the treats don't stick!
    • You can also spray your hands with non-stick spray before pressing the treats into the pan so that they are nice and compact. This will make cutting out the shapes much easier.
    • Get creative with your decorating and most importantly, have fun!
    rice cereal shamrocks with sprinkles and frosting to make a face
    Click on the image above to PIN for later!
    shamrock rice krispie treats on a plate

    Shamrock Rice Krispie Treats

    Make these cute and fun and Shamrock Rice Krispie Treats for St. Patrick's Day using your favorite childhood treat and some sprinkles!
    5 from 18 votes
    Print Pin Rate
    Prep Time: 25 minutes
    Cook Time: 5 minutes
    Cool Time: 15 minutes
    Total Time: 45 minutes
    Servings: 8 shamrocks
    Calories: 87kcal
    Author: EmilyFabulous

    Equipment

    • shamrock-shaped cookie cutter
    • large pot/saucepan
    • 9x13 pan
    • non-stick spray
    • wax paper

    Ingredients

    Rice Cereal Treats

    • 3 tablespoon butter
    • 6 cups rice cereal
    • 4 cups lime and lemon marshmallows *see notes
    • green food coloring
    • sprinkles for decorating
    • green gel frosting for decorating

    Instructions

    • Prepare a 9x13 pan with non-stick spray. Melt the butter in a large pot over medium heat. Add the marshmallows and stir until fully melted in the butter. Stir in the green food coloring. Remove the pot from the heat and stir in the rice cereal. Add to the prepared dish and press into the pan as much as you can. Place the pan in the fridge for 10 minutes to cool.
      green lime melted marshmallows in a pot
    • Turn the pan upside down on top of a cutting board or counter. Use the cookie cutter to cut out as many shamrocks as you can.
      green rice krispies with a shamrock cookie cutter
    • Use gel frosting and sprinkles to decorate the shamrocks with fun faces. Enjoy!
      shamrock rice krispie treat face

    Notes

    • You can use regular marshmallows instead of lime and lemon-flavored marshmallows. Below is a photo of the marshmallows I used. You will need two bags and you do have to separate the flavors, but my son and I had fun doing it!😁bag of fruit marshmallows
    • These treats can be stored in an air-tight container for 3-4 days. 
    • Nutrition estimates are for Rice Krispie Treats ONLY.

    Nutrition

    Calories: 87kcal | Carbohydrates: 13.2g | Protein: 0.8g | Fat: 3.5g | Saturated Fat: 2.2g | Cholesterol: 9mg | Sodium: 30mg | Potassium: 31mg | Fiber: 0.5g | Sugar: 4g | Calcium: 1mg

    Any nutrition calculations are only estimates using online calculators. Please verify using your own data.

    Did you make these Shamrock Rice Krispie Treats?

    If you make these Shamrock Rice Krispie Treats don't forget to leave a comment below and if you snap a pic, tag me on Instagram or Facebook.

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    Reader Interactions

    Comments

    1. Cole Byrne says

      January 13, 2022 at 10:06 am

      5 stars
      Thanks for sharing this! All the best!

      Reply
    2. Leah says

      March 14, 2021 at 3:23 am

      These are so fun and perfect for St. Patrick’s Day! I love baking for holidays because it’s a fun family activity plus you get dessert!

      Reply
      • Emily says

        March 14, 2021 at 3:29 am

        I like the way you think!😉 Have fun making these!

        Reply
    3. Linda Spatig says

      March 14, 2021 at 1:30 am

      5 stars
      I love the green colour and the shape. These are amazing!

      Reply
      • Emily says

        March 14, 2021 at 3:46 am

        Thanks, Linda!!

        Reply
    4. Jessica Formicola says

      March 13, 2021 at 6:27 pm

      5 stars
      These treats are way too fun! I love that you added eyes to them- it makes them even cuter! My kids will love helping me make these over the weekend!

      Reply
      • Emily says

        March 14, 2021 at 3:47 am

        Thanks! Yes, your kids will have so much fun making these. My son LOVES the eyeballs and wants to put them on everything!!😂

        Reply
    5. Christina's Bread Bakes says

      March 13, 2021 at 4:40 pm

      5 stars
      Cute project with the littlest ones! A bit sticky but so worth the fun had by all.

      Reply
      • Emily says

        March 14, 2021 at 3:48 am

        I'm so glad you guys made these! Yes, marshmallows and frosting with the kiddos can get a little messy, but I agree, totally worth it!

        Reply
    6. Sunrita says

      March 12, 2021 at 8:40 pm

      5 stars
      A dream for the kids! Pinning this

      Reply
      • Emily says

        March 13, 2021 at 2:19 am

        So true! Have so much fun making these!

        Reply
    7. Sue says

      March 12, 2021 at 7:59 pm

      5 stars
      What a fantastic idea for St Patrick's Day! Everyone loves Rice Krispie treats and they are incredibly cute with the shamrock shape! LOVE!

      Reply
      • Emily says

        March 13, 2021 at 2:18 am

        Exactly!! Who can say no to a rice krispie treat, especially when they are so cute?!?!😁

        Reply
    8. Biana says

      March 12, 2021 at 5:53 pm

      5 stars
      These Rice Krispie Treats look adorable. Perfect for St Patricks Day dessert.

      Reply
      • Emily says

        March 12, 2021 at 6:07 pm

        Thanks, Biana!

        Reply
    9. Neli Howard says

      March 12, 2021 at 5:44 pm

      5 stars
      Aww these are so cute I know the kids will love helping to make them ♥

      Reply
      • Emily says

        March 12, 2021 at 6:07 pm

        The kids will definitely love making these, have so much fun!

        Reply
    10. Jess says

      March 12, 2021 at 5:26 pm

      5 stars
      These are such a fun treat that the kiddos simply love!

      Reply
      • Emily says

        March 12, 2021 at 6:08 pm

        They are kiddo-approved and super fun to make, enjoy!

        Reply
    11. Andrea says

      March 12, 2021 at 5:09 pm

      5 stars
      These are so adorable! A perfect treat for St. Patty's day. I did not know they made marshmallows in these flavors and I am giong to search for them now!

      Reply
      • Emily says

        March 12, 2021 at 5:10 pm

        They do!! I can't wait to find something to make with the strawberry and orange marshmallows...probably some more cereal treats...LOL.😂

        Reply
    12. Beth says

      March 12, 2021 at 5:04 pm

      5 stars
      My son will be the hit of his St. Patty's day party with these!

      Reply

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