With St Patrick’s Day approaching, you may be looking for a fun themed treat. These green rice krispie treats are absolutely perfect for the occasion!
As a bonus, you can also use these green rice krispie treats as a base to make other treats like Grinch Rice Krispie Treats, Christmas Tree Rice Krispie Treats and Frankenstein Rice Krispie Treats.

How to Make Green Rice Krispie Treats
Making colored rice krispie treats is super fun and easy. For this recipe, we made green rice krispie treats.
These green rice krispie treats by themselves are super cute for a St Patrick’s Day treat as are these Lucky Charms Bars.
One of the cool things is that you can decide just how colorful you want them to be by adding more or less food coloring to the mixture. If you’ve made the Watermelon Rice Krispie Treats or Baby Shower Rice Krispie Treats you know more food coloring makes it more fun!
Another way to get colored rice krispie treats is by using colored marshmallows like in these Peep Rice Krispie Treats or Frozen Themed Rice Krispie Treats.
For this set of treats, we were really looking for a light green color that still let some of the yellow of the rice krispies come through. The goal was to get a green/gold color for the end product. (Unfortunately since I went for such a light green color, the color doesn’t show through as well as I would have hoped in the photos.)
This St Patrick’s Day green fudge is also a super yummy green themed dessert to try.
Making Green Rice Krispie Treats starts with the original Rice krispie treats recipe, with just one added step.

STEP ONE
First, you’ll need to get your butter and marshmallows prepared. In order to do this, they will need to be melted.
To melt your butter and marshmallows, you have two options. You can do it on the stove top or the microwave.
Make sure not to overheat the marshmallows as they can become stiff and difficult to work with. You’ll want to use low to medium heat on the stove or short intervals in the microwave around 60 seconds or so checking in on them.
STEP TWO
Once your butter and marshmallows are melted, you’ll want to add in your food coloring.
For these, we wanted a light green, yellow/gold color. So, we didn’t use a ton of food coloring. We used about 4 drops of yellow and about 6 drops of green.
If you want a darker green, you can use more green and/or less yellow.
STEP THREE
Mix your Rice Krispies into your green marshmallow mixture. Make sure to thoroughly and evenly mix everything together.
STEP FOUR
Finally, you’ll need to get your sticky treat mixture into a pan. Make sure you grease both the pan and the utensil (I prefer a spatula) you’re using to transfer the mixture.
Spread everything out evenly and let it cool. It usually takes 20-40 minutes for the treats to cool well.
Green Rice Krispie Treats
Equipment
- 9×13 Pan
- Spatula
Ingredients
- 6 cups Rice Krispies
- 10 oz Marshmallows
- 4 tbsp Salted Butter
- 1 tube Green Food Coloring
Instructions
- Melt & Mix Butter and Marshmallows together. Either on low on the stove top. Or in 30 second increments in the microwave.
- Once melted, add and stir in the green and yellow food coloring. I did a very light/tinted green color for these. But you can add as much or as little depending on how much color you want.
- Add and stir in Rice Krispies cereal. Make sure that mixture is evenly distributed.
- Spread mixture into pan with greased spatula.
- Let treats cool for around 30 mins and then cut and enjoy!
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