Shamrock Rice Krispie Treats
Rice Krispie treats are a nostalgic comfort food for many of us, but adding a vibrant green hue and shaping them like shamrocks instantly transforms them into a festive centerpiece.
Prep Time 10 minutes mins
Cook Time 10 minutes mins
Total Time 20 minutes mins
Course Dessert
Cuisine American
Servings 12 servings
Calories 180 kcal
For the Rice Krispie Base:
- 6 cups Rice Krispies cereal
- 4 cups mini marshmallows
- 3 tablespoons unsalted butter
- 1 teaspoon vanilla extract
- Green food coloring about 10–15 drops, or until desired color
Optional Decorations:
- Sprinkles chocolate drizzle, or edible glitter for topping
Prep Your Pan and Ingredients
Line a 9x13-inch baking pan with parchment paper. This makes it super easy to lift the treats out later.
Measure out your Rice Krispies, marshmallows, butter, and green food coloring so everything is ready to go.
Pro tip: Have your cookie cutter and decorations nearby if you plan to shape and decorate the treats—they’re easier to work with while the mixture is still warm.
Melt the Butter
Place 3 tablespoons of butter in a large saucepan over low-medium heat.
Stir gently until fully melted and smooth.
Pro tip: Keep the heat moderate to avoid browning the butter; you just want it melted and creamy.
Add Marshmallows
Add 4 cups of mini marshmallows to the melted butter.
Stir continuously until the marshmallows are fully melted and combined with the butter.
Pro tip: Use a silicone spatula or wooden spoon and keep stirring—this prevents lumps and ensures a smooth, stretchy base.
Add Vanilla and Green Coloring
Remove the pan from heat.
Stir in 1 teaspoon of vanilla extract.
Add green food coloring gradually, mixing until you reach your desired shade of green.
Pro tip: Start with 10 drops and add more if needed—you can always make it brighter, but it’s tricky to fix if it gets too dark.
Combine with Rice Krispies
Pour the Rice Krispies cereal into the marshmallow mixture.
Fold gently until every piece is coated evenly in the green, gooey goodness.
Pro tip: Don’t over-stir, or the cereal can get crushed and lose that perfect crispy texture.
Press Into the Pan
Transfer the mixture into your prepared baking pan.
Use a spatula (or a piece of parchment) to press it down evenly.
Pro tip: Lightly butter your spatula or hands to prevent sticking—this helps get a smooth, even surface for cutting or shaping.
Shape and Decorate
If you’re making shamrocks, let the mixture cool for 10–15 minutes—still slightly warm is ideal for cutting.
Use your cookie cutter to press out shamrock shapes, or cut squares if you prefer classic treats.
Decorate with sprinkles, chocolate drizzle, or edible glitter if desired.
Let Them Set
Allow the treats to fully set at room temperature, about 30 minutes.
Once firm, enjoy or store in an airtight container for up to 3 days.
Nutritional Value (per serving, approximate):
- Calories: 180–200 kcal
- Carbohydrates: 35 g
- Sugars: 20 g
- Fat: 4–5 g
- Saturated Fat: 2–3 g
- Protein: 1–2 g
- Fiber: <1 g
- Sodium: 90–120 mg
Share your thoughts! Rate and comment below if you tried this recipe.
Nutrition Disclaimer:
The nutritional information provided on this website is an estimate only and is intended for general guidance. We cannot guarantee its accuracy and recommend consulting a qualified healthcare professional or registered dietitian for personalized nutrition advice.
Keyword rice krispie treats, shamrock rice krispie treats