Shamrock Rice Krispie Treats are festive, no-bake, and ready in under 20 minutes — a perfect addition to your St. Patrick’s Day celebration.
Shamrock Rice Krispie Treats
These shamrock Rice Krispie treats are a simple, festive, no-bake dessert you can make at home. They’re buttery, crunchy, sweet and naturally gluten free when made with plain rice cereal.
Using white chocolate for the topping gives them a creamy finish — and decorating with St. Patrick’s Day sprinkles makes them colorful and crowd-pleasing. This version is made in the microwave so they come together quickly and easily.
Ingredients Needed
Cereal – Plain Rice Krispies or similar rice cereal (check label if gluten sensitivity is a concern).
Marshmallows – Mini marshmallows melt easily and blend smoothly.
Chocolate – White chocolate or candy coating for drizzling.
Staples – Unsalted butter and festive sprinkles.
How to Make Shamrock Rice Krispie Treats
First: In a large microwave-safe bowl, melt the butter and marshmallows in 30-second intervals, stirring between each, until smooth.
Second: Immediately add the rice cereal and stir quickly until the cereal is evenly coated.
Third: Press the mixture into a 9×13-inch pan prepared with nonstick spray. Let it set briefly so it firms up slightly.
Fourth: Melt the white chocolate in short microwave bursts, stirring until smooth. Drizzle the chocolate over the bars, add sprinkles, and allow the topping to set at room temperature. Once firm, use a shamrock cookie cutter or knife to cut shapes.
How do you spread them in a pan without making a mess?
Lightly spray a rubber spatula or your hands with nonstick spray and press the mixture into the pan. Alternatively, lay a lightly sprayed sheet of wax paper on top and press down gently. Avoid packing the mixture too tightly to keep the treats tender.
Why do my rice krispie treats get hard?
Overheating marshmallows can make the finished treats tough. Heat only until melted, then mix with the cereal and press into the pan. Storing them in an airtight container at room temperature preserves their soft, chewy texture.
Do you put them in the fridge?
Refrigeration isn’t necessary and can make treats firmer. If you need the white chocolate to set quickly, briefly chilling them is fine — remove them as soon as the topping has hardened. For the best texture, keep them at room temperature.
Can you warm them up?
A short 5–10 second microwave zap will soften a treat if it has firmed up. Be careful when reheating pieces with a white chocolate topping, as the chocolate will melt quickly.
How do you cut rice krispie treats neatly?
Use a large sharp knife or a pizza cutter for clean edges. Lightly spray the blade with nonstick spray between cuts, or remove the slab from the pan before slicing for a neater finish.
When do you cut them?
Wait until the bars have set enough to hold their shape. If cut too soon they may fall apart; once the chocolate is firm and the mixture has cooled slightly, cutting will be easier.
Tapas Tips & Tricks
- Use a large microwave-safe bowl — marshmallows expand as they heat.
- For easier melting, melt the butter first, then add marshmallows and continue in short intervals.
- Stir until the marshmallow mixture is completely smooth before adding cereal.
- Store finished treats in an airtight container at room temperature to keep them soft.
- For extra flavor, stir in 1 teaspoon vanilla extract after the marshmallows and butter are melted.
- Rice cereal is typically gluten free, but always double-check ingredient labels if needed.
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Easy Party Treats
- Monster Rice Krispie Treats
- Reuben Deviled Eggs
- Almond Joy Rice Krispies
- Layered Cereal Treat Bars
- Easter Rice Krispie Treats
- S’mores Bars
Shamrock Rice Krispie Treats
Equipment
- 9×13-inch baking pan
- Large microwave-safe mixing bowl
Ingredients
- 3 tablespoons butter
- 10 ounces marshmallows
- 6 cups rice krispies cereal
- 4 ounces white chocolate
- 2 tablespoons festive sprinkles
Instructions
- In a large microwave-safe bowl, combine butter and marshmallows.
- Microwave in 30-second intervals until butter is melted and marshmallows are soft and puffed (use a large bowl — they expand).
- Stir until smooth.
- Add cereal and quickly stir to coat evenly.
- Press the mixture into a 9×13 pan coated with cooking spray.
- Let set while you melt the white chocolate in a small bowl in 15-second intervals until creamy.
- Drizzle the melted chocolate over the bars and sprinkle with festive sprinkles.
- Allow to set at room temperature until the chocolate hardens, then cut and serve.
Nutrition
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Calories: 214kcal
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Carbohydrates: 38 g
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Protein: 2 g
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