St. Patrick’s Day Rice Krispie Treats
These St. Patrick’s Day Rice Krispie Treats are deceptively easy to make! Use a shamrock cookie cutter to make these cute treats.
St. Patrick’s Day is simply put, epic, here in Kansas City. Parades, parties, you name it. The city is a complete zoo! And my son’s school celebrates the luck of the Irish as well. This year, I’ll be making these St. Patrick’s Day Rice Krispie treats for his class party. And he was happy to help me!

My son and I decided to make them into shapes inspired by Lucky Charms! Primarily shamrocks and hearts. Some rice krispies cereal, extra marshmallows and green food coloring and we were on our way!

Recipe Substitutions and Additions
These shamrock rice krispie treats are so easy, the kiddos can definitely help! It’s an easy recipe, and you can certainly adapt them to your needs. Here are a few ideas:
- Any type of marshmallows works to make the base. Mini marshmallows, jumbo marshmallows. It doesn’t matter!
- Add a handful of white chocolate chips for texture and flavor
- Add a cup of Lucky charms marshmallows after the mixture has cooled a bit. We don’t want them to melt!
- Experiment with different colors for the food coloring.
The butter and marshmallow mixture can also be done in the microwave! Just microwave in 30 second increments until totally melted through, stirring each time you remove it from the microwave. Oh, and make sure to use a large microwave safe bowl!

Serving Suggestions
These St. Patrick’s Rice Krispie Treats are perfect for kids! Serve as dessert at a party, or as the finishing touch for your St. Patrick’s Day dinner!
If you need more ideas for St. Patrick’s Day, check out my list of Irish Side Dishes.


Saving Leftovers
Keep rice krispie treats in an airtight container at room temperature for up to a week!
I hope that you love these adorable shamrock treats for St. Patrick’s Day! If you make them, I’d love to hear how it went in the comments below.

St. Patrick’s Day Rice Krispie Treats
Ingredients
- ¼ cup butter
- 4 cups miniature marshmallows
- ½ teaspoon vanilla
- 2 drops green gel food coloring, add more drops for a deeper green
- 6 cups rice cereal
- gold sprinkles, optional
- green candy melts, melted, optional, for dipping
Equipment
- gel food coloring green
- 3-inch shamrock cookie cutter
Instructions
- Grease a baking sheet or pan by generously rubbing a stick of butter across it or spraying with nonstick cooking spray. Set aside.
- In a large pot, melt the butter over low heat.
- Add marshmallows and stir constantly until completely melted.
- Turn off the heat. Once marshmallow mixture has melted, add vanilla and fold in with a spatula. Add food coloring and stir until marshmallow mix is green.
- Fold in rice cereal.
- Place mixture into your buttered baking sheet and spread evenly. Lay a piece of parchment across the mixture and use a rolling pin to press mixture into an even width.
- Using your cookie cutters, cut out your desired shapes (and enjoy the scraps!)
- Place on parchment paper.
- Decorate with gold sprinkles or dip in melted candy melts if desired.
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Looks so yummy and edible even though its green lol! Love it
I’m so amazed by the beautiful color of these dainty treats. I’ll definitely be pinning it for later.
what a pretty clever idea! My daughter would love to try this since she loves rice krispie treats. Thanks for sharing!
My kids literally ask me to make some sort of marshmallow treat at least 3x per week. This will be a great surprise for them – hopefully they feel good about eating green!
These turned out great. My daughters and I love making rice krispie treats. These look like they’d be a lot of fun to make too.
Love the shamrocks! Rice Krispie treats are always a hit and I like the gold sprinkles. Great for St. Patty’s Day.
These look so fun to make!! Will definitely be doing this with the girls
I love creating themed treats, especially for the kids classes to celebrate. I am going to have to give these a try because they look delicious and fit right in with St. Patrick’s day fun.
thanks for sharing this grand idea. Me and the grandkids will have lots of fun making these together
These are super fun! Rice Krispies are perfect for every occasion and the gold sprinkles are perfect too! My boys are going to love these.
These look absolutely amazing! loving the color and shape! such a great treat for st patrick’s day! xx corinne