Classic chewy crispy squares

Featured in: Simple Sweet Finishes

These classic chewy crispy squares combine melted marshmallows and puffed rice cereal for a nostalgic treat. The mixture is melted in butter, stirred until smooth, and folded into the cereal for an even coating. Pressed firmly into a pan and cooled until set, they yield soft, chewy, and crispy bites. An optional chocolate topping can be melted and spread over the surface for added richness. Perfect as a quick and easy sweet snack with simple ingredients and minimal preparation time.

Updated on Fri, 09 Jan 2026 16:02:00 GMT
Golden, gooey Rice Krispie Treats: a tray of irresistibly chewy, classic American dessert squares. Pin It
Golden, gooey Rice Krispie Treats: a tray of irresistibly chewy, classic American dessert squares. | casaflavors.com

There's something about Rice Krispie treats that takes me straight back to my grandmother's kitchen on a Saturday afternoon, the whole place smelling like toasted cereal and melted marshmallow. She'd let me stand on a stepstool beside the stove, watching the marshmallows transform from little pillows into a glossy, stretchy cloud, and I was absolutely convinced I was witnessing magic. My job was to listen for the exact moment she'd say "now," when the butter and marshmallows came together into that perfect shimmer, and I'd hand her the cereal box like I was passing her the most important ingredient in the world. Making these now, I still feel that same anticipation every single time.

I made these for a school bake sale once and watched a kid take a bite, pause, and then eat three more before his mom caught him. His face said everything—pure, uncomplicated joy. That's when I realized these aren't just a treat; they're a moment of permission to be delighted by something simple.

Ingredients

  • Puffed rice cereal (6 cups): The structure of everything; use the classic variety for that nostalgic snap, and measure it loosely so you're not packing it down before it even hits the pan.
  • Mini marshmallows (4 cups): They melt faster and distribute more evenly than large ones, which I learned the hard way when I once used the big puffy kind and ended up with pockets of marshmallow hiding everywhere.
  • Unsalted butter (3 tbsp): The glue that holds everything together; unsalted lets you taste the marshmallow sweetness without competing flavors.
  • Semi-sweet chocolate chips (1 cup, optional): The luxury layer that makes people think you spent way more time on this than you actually did.

Instructions

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Prepare your stage:
Line a 9x13-inch pan with parchment paper or give it a light grease, because once that marshmallow mixture touches down, you're racing against the clock. This one step saves you from the frustration of trying to pry hardened treats out of an unforgiving pan.
Melt the marshmallow magic:
In a large saucepan over low heat, melt the butter first, then add the marshmallows and stir constantly until they're completely smooth and glossy. You'll feel the moment when it goes from grainy to silky—that's your signal to keep going, but watch that it doesn't get too hot or the marshmallows will start to deflate.
Fold in the cereal:
Remove from heat immediately and add the puffed rice cereal, then gently fold it in like you're tucking something precious into a blanket. You want every piece coated in that marshmallow mixture, but you're also trying to keep as many bubbles intact as possible, which is the delicate balance that makes these treats so special.
Press and set:
Quickly transfer the mixture to your prepared pan and use a buttered spatula or piece of wax paper to press it down firmly and evenly. The "quickly" part matters here because once that mixture cools even a little, it gets stubborn.
Add chocolate (if you're going there):
Melt your chocolate chips in 30-second microwave intervals, stirring between each one until it's completely smooth and pourable. Spread it evenly over the top and let the whole thing sit until everything sets.
Cool and cut:
Give it at least 30 minutes at room temperature to set completely before cutting into 16 squares. The wait is worth it because a premature cut leads to a crumbly mess, and nobody wants that.
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Freshly cut Rice Krispie Treats, offering a tempting view of the sweet, marshmallowy goodness. Pin It
Freshly cut Rice Krispie Treats, offering a tempting view of the sweet, marshmallowy goodness. | casaflavors.com

My neighbor brought a plate of these to my house after I'd been sick, and I remember thinking that sometimes the most comforting thing in the world isn't complicated—it's just something that tastes like being taken care of.

Flavor Variations That Actually Work

Once you've made these the classic way, you start noticing possibilities everywhere. Adding half a teaspoon of vanilla extract right after you remove the pan from heat gives the whole thing a subtle warmth that makes people pause and ask what you did differently. Peanut butter chips swirled into the chocolate topping create this salty-sweet contrast that elevates the whole experience, and butterscotch chips turn it into something that tastes almost like a candy bar. I've even seen people add crushed pretzels to the cereal layer for crunch, which sounds odd until you taste it and suddenly it makes perfect sense.

Storage and Keeping Them Fresh

These keep beautifully for about a week in an airtight container at room temperature, which is lucky because they have a way of disappearing faster than you'd expect. I learned to layer them between parchment paper so they don't stick together, and I keep them away from humidity because moisture makes them go soft and lose that satisfying crispness. If somehow you have leftovers after a week, you can still eat them, but they start getting dense and lose their charm.

Make It Your Own

The beautiful thing about this recipe is that it's a canvas waiting for your own touches. You can make it vegan by swapping in plant-based butter and vegan marshmallows, or you can skip the chocolate entirely and press some crushed candy canes into the top while it's still warm. The structure is so forgiving that almost anything you add becomes part of the story rather than a mistake.

  • Toast the cereal lightly in a dry pan before mixing if you want to deepen the flavor and add extra crunch.
  • Press the mixture into the pan while it's still warm enough to be pliable but cool enough not to burn your fingers through the wax paper.
  • Cut with a sharp, buttered knife and wipe it clean between cuts for neat squares that look intentional rather than accidental.
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Warm and melty Rice Krispie Treats with optional chocolate, a nostalgic snack perfect for sharing. Pin It
Warm and melty Rice Krispie Treats with optional chocolate, a nostalgic snack perfect for sharing. | casaflavors.com

These treats have been showing up at potlucks and bake sales and kitchen counters for generations because they're proof that the simplest things are often the most satisfying. Make them for someone you want to make smile, or make them just for yourself on a day when you need a small, uncomplicated joy.

Recipe FAQs

What type of cereal works best for these squares?

Puffed rice cereal is ideal for maintaining the light, crispy texture essential for these treats.

Can I add flavors to the marshmallow mixture?

Yes, adding vanilla extract after melting marshmallows enhances the overall flavor without overpowering the base.

How do I ensure the squares hold their shape when cooling?

Press the mixture firmly and evenly into the pan and allow it to cool undisturbed at room temperature until set.

Is it possible to include a chocolate topping?

Yes, melting semi-sweet chocolate chips and spreading them over the set cereal base adds a delicious chocolate layer.

Can these chewy crispy squares be made vegan?

Using vegan marshmallows and plant-based butter replaces dairy ingredients, making the treat suitable for vegan diets.

Classic chewy crispy squares

Chewy, crispy squares with melted marshmallows and puffed rice, optionally topped with smooth chocolate.

Prep Time
10 mins
Time to Cook
5 mins
Overall Time
15 mins
Created by Fiona Chambers


Skill Level Easy

Cuisine Type American

Makes 16 Portions

Dietary Details Vegetarian

What You'll Need

Base

01 6 cups puffed rice cereal (e.g., Rice Krispies)
02 4 cups mini marshmallows
03 3 tablespoons unsalted butter

Optional Chocolate Topping

01 1 cup semi-sweet chocolate chips

How to Make It

Step 01

Prepare Pan: Line a 9x13-inch baking pan with parchment paper or lightly grease it.

Step 02

Melt Butter and Marshmallows: In a large saucepan over low heat, melt the butter. Add marshmallows and stir constantly until completely melted and smooth.

Step 03

Combine Cereal: Remove from heat. Immediately add puffed rice cereal and gently fold to coat all cereal evenly.

Step 04

Transfer and Press Mixture: Transfer the mixture quickly to the prepared pan. Using a buttered spatula or wax paper, press the mixture evenly and firmly into the pan.

Step 05

Add Chocolate Topping (Optional): Melt chocolate chips in a microwave-safe bowl in 30-second intervals, stirring until smooth. Spread evenly over the pressed cereal mixture.

Step 06

Cool and Set: Allow to cool at room temperature for at least 30 minutes until set.

Step 07

Serve: Cut into 16 squares and serve.

Equipment Needed

  • Large saucepan
  • Mixing spoon or spatula
  • 9x13-inch baking pan
  • Parchment paper (optional)
  • Microwave-safe bowl (for chocolate topping)

Allergy Info

Be sure to look over every ingredient for allergens, and talk to a health expert with any concerns.
  • Contains dairy (butter, chocolate chips).
  • May contain gluten if cereal is not certified gluten-free.
  • Marshmallows may contain traces of egg or gelatin.

Nutrition per Serving

Nutritional info is for general reference and isn't medical guidance.
  • Caloric Value: 120
  • Fats: 2.5 g
  • Carbohydrates: 24 g
  • Proteins: 1 g