Espresso Rice Krispie Treats With Irish Cream Flavor

These espresso rice krispie treats are a rich, no-bake twist on a classic favorite. Infused with bold espresso and a smooth Irish cream–style flavor, they balance sweetness with deep, toasty notes for a dessert that feels a little more grown-up while still being fun and comforting.

Why You’ll Love This Recipe

These treats are quick to make and require no oven, making them perfect for last-minute desserts. The espresso adds depth and warmth, while the Irish cream flavor pairs beautifully with the browned butter and marshmallows. Using puffed brown rice cereal keeps the sweetness in check and adds a subtle nutty flavor. They are easy to slice, serve, and share for gatherings or casual treats.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

8 tablespoons unsalted butter
20 ounces large marshmallows
1/4 cup freshly brewed espresso, cooled slightly
3 tablespoons non-alcoholic Irish cream–style syrup or cream flavoring
1 teaspoon vanilla extract
3 to 4 cups puffed brown rice cereal

Directions

Prepare an 8×8-inch square baking dish by lining it with parchment paper and lightly greasing it. Set aside.

In a medium saucepan over medium-low heat, melt the butter. Continue cooking, stirring occasionally, until the butter turns golden brown and smells nutty. This will take about 3 to 6 minutes. Watch carefully so it does not burn.

Remove the pan briefly from the heat and carefully stir in the espresso and the Irish cream–style flavoring. Return the pan to low heat.

Gradually add the marshmallows, starting with about one and a half bags. Stir continuously as they melt, keeping the heat low and steady to prevent scorching.

Once the mixture looks smooth and slightly soupy, remove from heat and stir in the vanilla extract. Add the puffed brown rice cereal and gently fold until evenly coated. Work quickly before the mixture starts to firm up.

Transfer the mixture to the prepared pan. Use a spatula or lightly greased hands to press it into an even layer without packing it too tightly.

Allow the treats to cool at room temperature for about 30 minutes. Once set, cut into large squares and serve.

Servings and timing

This recipe makes approximately 9 to 12 squares, depending on how large you cut them.
Preparation time is about 15 minutes, with an additional 30 minutes for cooling, for a total time of roughly 45 minutes.

Variations

For a stronger coffee flavor, add an extra tablespoon of espresso.
If you prefer a sweeter treat, mix in a handful of mini marshmallows after adding the cereal.
Traditional puffed rice cereal can be used instead of brown rice cereal for a more classic taste.
A pinch of cinnamon or cocoa powder can add warmth and complexity.

Storage/Reheating

Store the treats in an airtight container at room temperature for up to 2 to 3 days. Keep them away from heat and moisture to prevent them from becoming sticky or stale. These treats do not need reheating and are best enjoyed at room temperature.

FAQs

Can I use regular puffed rice cereal instead of brown rice cereal?

Yes, regular puffed rice cereal works well, though the flavor will be slightly sweeter and lighter.

Is the espresso flavor strong?

The espresso adds depth without overpowering the sweetness, but you can reduce the amount slightly if desired.

Can I make these treats ahead of time?

Yes, they can be made a day in advance and stored in an airtight container.

Why did my treats turn out hard?

This usually happens if the marshmallow mixture was cooked over too high heat or pressed too firmly into the pan.

Can I freeze these rice krispie treats?

Yes, once fully cooled, wrap them tightly and freeze for up to 2 months. Thaw at room temperature before serving.

What can I use if I don’t have an espresso machine?

Strong brewed coffee can be used as a substitute, though the flavor will be slightly milder.

Can I reduce the sweetness?

Using brown rice cereal and avoiding overpacking the marshmallows helps keep the sweetness balanced.

Do I need to brown the butter?

Browning the butter adds flavor, but you can skip this step and simply melt it if preferred.

How do I keep the mixture from sticking?

Lightly grease your spatula or hands with a neutral oil or cooking spray before pressing the mixture into the pan.

Can I double this recipe?

Yes, simply double the ingredients and use a 9×13-inch pan for even thickness.

Conclusion

These espresso rice krispie treats with Irish cream flavor offer a simple yet flavorful upgrade to a classic dessert. With minimal ingredients and no baking required, they are perfect for sharing, gifting, or enjoying as a quick homemade treat when you want something a little different but still familiar.

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