Name: Hawaiian Rice Krispie Treats
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Cuisine: American
Ingredients: 2 tablespoons butter; 10 ounces marshmallows; 1 teaspoon vanilla extract; 6 cups Rice Krispies cereal; 1/2 cup chopped macadamia nuts; 1/2 cup white chocolate chips; 1/2 cup mango puree; 1 tablespoon melted butter; 1/4 teaspoon salt; 2 to 2 1/2 cups powdered sugar; Nonstick cooking spray

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Hawaiian Rice Krispie Treats are a fun tropical twist on the classic marshmallow cereal bars I grew up loving. I combine gooey Rice Krispies with crunchy macadamia nuts, creamy white chocolate chips, and finish everything with a sweet, vibrant mango glaze. The result is a colorful no-bake dessert that is perfect for parties, potlucks, summer gatherings, or whenever I want a simple treat with island-inspired flavors.

Ingredients

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

2 tablespoons butter

10 ounces marshmallows

1 teaspoon vanilla extract

6 cups Rice Krispies cereal

½ cup chopped macadamia nuts

½ cup white chocolate chips

½ cup mango puree

1 tablespoon melted butter

¼ teaspoon salt

2 to 2½ cups powdered sugar

Directions

I spray a 9×13-inch baking pan with nonstick cooking spray.

I melt the butter in a large saucepan over low heat for 3 to 4 minutes, then stir in the marshmallows until they are completely melted and smooth.

I mix in the vanilla extract before adding the Rice Krispies cereal, stirring until every piece is evenly coated.

I press the mixture firmly into the prepared pan using a sheet of waxed paper to prevent sticking.

I immediately sprinkle the chopped macadamia nuts and white chocolate chips over the top, gently pressing them into the warm cereal mixture.

I whisk together the mango puree, melted butter, salt, and 2 cups of powdered sugar until smooth, adding more powdered sugar if I want a thicker glaze.

I drizzle the mango glaze evenly over the bars and let everything set for at least 1 hour before slicing and serving.

Servings and Timing

Servings: 36 bars

Prep Time: 5 minutes

Cooking Time: 10 minutes

Total Time: 15 minutes

Resting Time: 1 hour

Calories: Approximately 80 kcal per serving

Variations

I swap the white chocolate chips for dark chocolate chips when I want a richer flavor.

I sprinkle toasted shredded coconut over the bars for extra tropical texture.

I add finely chopped dried pineapple or dried mango to make the treats even fruitier.

I use roasted cashews or chopped almonds if I do not have macadamia nuts available.

I finish the bars with a light drizzle of melted white chocolate for an elegant presentation.

Storage/Reheating

I store these Rice Krispie treats in an airtight container at room temperature for up to 3 days. If I want to keep them fresh longer, I refrigerate them for up to 1 week, although I let them come to room temperature before serving for the best texture.

I can also freeze the bars in a freezer-safe container for up to 2 months. I thaw them overnight in the refrigerator or for about 30 minutes at room temperature before enjoying them.

Since these are no-bake treats, I do not reheat them. If the glaze becomes firm after refrigeration, I simply let the bars sit at room temperature until they soften slightly.

FAQs

Can I use homemade marshmallows?

I can, but I make sure they melt smoothly because homemade marshmallows may have a slightly different texture than store-bought ones.

Can I use frozen mango puree?

Yes, I thaw the puree completely and stir it well before mixing it into the glaze.

How do I keep the treats soft?

I avoid overcooking the marshmallows and store the bars in an airtight container to help maintain their chewy texture.

Can I make these ahead of time?

Yes, I often prepare them a day in advance since they stay fresh and are easy to slice once fully set.

Can I make this recipe gluten-free?

Yes, I simply use a certified gluten-free crispy rice cereal and double-check that all other ingredients are labeled gluten-free.

Conclusion

I enjoy making these Hawaiian Rice Krispie Treats whenever I want a quick dessert that feels bright, tropical, and festive. The combination of gooey marshmallow cereal bars, crunchy macadamia nuts, creamy white chocolate, and sweet mango glaze creates a delicious balance of flavors and textures. Whether I prepare them for a family gathering, a summer celebration, or simply as a fun homemade snack, I always end up with colorful treats that disappear quickly.

📖 Recipe:

Hawaiian Rice Krispie Treats

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Author: Cheryl
Total Time: 15 minutes
Yield: 36 bars
Diet: Vegetarian

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Description

Hawaiian Rice Krispie Treats are a fun tropical twist on the classic marshmallow cereal bars, featuring crunchy macadamia nuts, creamy white chocolate chips, and a sweet mango glaze. These colorful no-bake treats are perfect for parties, potlucks, and summer gatherings.

Instructions

Spray a 9×13-inch baking pan with nonstick cooking spray.
Melt 2 tablespoons butter in a large saucepan over low heat. Stir in the marshmallows until completely melted and smooth.
Mix in the vanilla extract, then add the Rice Krispies cereal and stir until evenly coated.
Press the mixture firmly into the prepared pan using waxed paper to prevent sticking.
Sprinkle the chopped macadamia nuts and white chocolate chips over the warm cereal mixture, gently pressing them into the surface.
Whisk together the mango puree, 1 tablespoon melted butter, salt, and 2 cups powdered sugar until smooth, adding more powdered sugar if a thicker glaze is desired.
Drizzle the mango glaze evenly over the bars.
Let the treats rest for at least 1 hour before slicing into bars and serving.