Classic Rice Krispie Treat Squares

Why You’ll Love This Recipe

I like how easy and foolproof this recipe is — just a few ingredients and a few minutes, and I have a pan full of golden, marshmallowy goodness. The balance of buttery richness and vanilla flavor gives these treats that classic taste everyone loves. Whether I make them plain or add fun mix-ins, they’re always a crowd favorite.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)
6 cups Rice Krispies cereal
1 package (10 oz) mini marshmallows (or 4 cups regular marshmallows)
3 tablespoons unsalted butter
½ teaspoon vanilla extract
A pinch of salt (optional)
Cooking spray or butter for greasing the pan

Classic Rice Krispie Treat Squares Directions

  1. Prepare the pan: Lightly grease a 9×13-inch baking dish with butter or cooking spray to prevent sticking. Set aside.

  2. Melt butter and marshmallows: In a large saucepan, melt the butter over low heat. Once melted, add the marshmallows and stir continuously until smooth and fully melted, about 3–5 minutes. Regular marshmallows may take a bit longer.

  3. Add flavor: Remove from heat and stir in the vanilla extract and salt (if using). This step enhances the overall flavor.

  4. Mix in the cereal: Gradually add the Rice Krispies cereal to the melted marshmallow mixture. Stir quickly and gently until all cereal is evenly coated.

  5. Transfer to the pan: Pour the mixture into the prepared baking dish. Use a buttered spatula or wax paper to press the mixture evenly into the pan without compacting it too tightly — I like to keep the texture light and airy.

  6. Cool and cut: Allow the treats to cool at room temperature for about 30 minutes. Once set, lift them out of the pan and cut into squares or rectangles using a sharp knife.

  7. Serve and enjoy: Arrange the squares on a platter or store them in an airtight container at room temperature for up to two days.

Servings and Timing

Servings: 12–16 squares
Prep time: 10 minutes
Total time: 40 minutes

Variations

  • I sometimes add ½ cup of mini chocolate chips or colorful sprinkles to the mixture for a fun twist.

  • For extra indulgence, I drizzle melted chocolate or white chocolate over the top once cooled.

  • I love mixing in crushed cookies, peanut butter chips, or even a handful of M&M’s for added crunch and color.

  • For a salted caramel version, I drizzle caramel sauce over the top and sprinkle with sea salt before cooling.

  • To make them more festive, I tint the melted marshmallow mixture with food coloring to match holidays or special occasions.

Storage/Reheating

I store leftover treats in an airtight container at room temperature for up to 2 days to maintain their texture. If I need them to last longer, I wrap each square individually in plastic wrap and refrigerate for up to a week. To soften, I let them sit at room temperature for a few minutes before eating.

FAQs

How do I keep Rice Krispie treats soft?

I always melt the marshmallows over low heat to keep them smooth and avoid overcooking, which can make the treats hard.

Can I use marshmallow fluff instead of marshmallows?

Yes — I use about 7 ounces of marshmallow fluff as a substitute for a package of mini marshmallows.

Why are my treats too sticky?

They might not have cooled long enough or were pressed too firmly. I lightly butter my hands or spatula to prevent sticking.

Can I make these dairy-free?

Yes — I replace butter with coconut oil or a dairy-free spread, and they turn out just as delicious.

Can I freeze Rice Krispie treats?

I can freeze them in an airtight container for up to 1 month. I separate layers with parchment paper to prevent sticking.

Can I use other cereals?

Definitely — I’ve made these with Cocoa Krispies, Cheerios, or Fruity Pebbles for a fun variation.

How do I make them extra gooey?

I simply add an extra cup of marshmallows to the recipe for a chewier, softer texture.

Can I double the recipe?

Yes — I just use a larger baking dish or make two batches. They set best in layers about 1 inch thick.

What’s the best way to cut them cleanly?

I use a sharp buttered knife and wipe it between cuts to keep the edges neat.

How can I add more flavor?

A pinch of cinnamon, a splash of almond extract, or a drizzle of melted peanut butter gives these treats a delicious twist.

Conclusion

I love how these Classic Rice Krispie Treat Squares bring a timeless, comforting sweetness to any occasion. With their perfect balance of crispy cereal and gooey marshmallow, they’re simple to make yet always impressive. Whether I make them for a family dessert, school event, or just because, they never fail to spark smiles and sweet memories.


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Classic Rice Krispie Treat Squares

Classic Rice Krispie Treat Squares

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Soft, chewy, and perfectly sweet, these Classic Rice Krispie Treat Squares combine gooey marshmallows with crispy cereal for the ultimate nostalgic snack. Easy to make and endlessly customizable, they’re a timeless treat loved by all ages.

  • Author: Amy
  • Prep Time: 10 minutes
  • Cook Time: 5 minutes
  • Total Time: 40 minutes
  • Yield: 12–16 squares
  • Category: Dessert
  • Method: Stovetop and No-Bake
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

6 cups Rice Krispies cereal

1 package (10 oz) mini marshmallows (or 4 cups regular marshmallows)

3 tbsp unsalted butter

1/2 tsp vanilla extract

A pinch of salt (optional)

Cooking spray or butter for greasing the pan

Instructions

  1. Lightly grease a 9×13-inch baking dish with butter or cooking spray. Set aside.
  2. In a large saucepan, melt butter over low heat. Add marshmallows and stir continuously until melted and smooth, about 3–5 minutes.
  3. Remove from heat and stir in vanilla extract and salt (if using).
  4. Add Rice Krispies cereal to the melted mixture and gently stir until evenly coated.
  5. Transfer mixture to the prepared pan. Use a buttered spatula or wax paper to press it evenly without compacting too tightly.
  6. Let cool for about 30 minutes at room temperature.
  7. Once set, lift out of the pan and cut into squares or rectangles. Serve and enjoy!

Notes

Add mini chocolate chips, sprinkles, or M&M’s for a fun twist.

Drizzle with melted chocolate or caramel for extra indulgence.

Use food coloring for festive occasions.

Replace butter with coconut oil for a dairy-free version.

Freeze for up to 1 month, separating layers with parchment paper.

Nutrition

  • Serving Size: 1 square
  • Calories: 130
  • Sugar: 13g
  • Sodium: 90mg
  • Fat: 3g
  • Saturated Fat: 2g
  • Unsaturated Fat: 1g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 0g
  • Protein: 1g
  • Cholesterol: 10mg
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