Marshmallow and Rice Krispy Recipe: Classic No-Bake Squares

There’s a reason these no-bake squares have remained a classic for generations—they’re impossibly simple yet deliver perfectly crispy and chewy results every time.

This recipe requires just a handful of pantry staples and comes together in under 15 minutes. The melted marshmallow and butter create a sticky base that binds the cereal into uniform, easy-to-cut squares.

What you end up with is a batch of golden treats that are soft on the inside with just the right amount of crunch. They’re ideal for parties, lunchboxes, or satisfying a sudden sweet tooth.

No oven, no fuss—just pure, nostalgic deliciousness.

Ingredients for Marshmallow and Rice Crispy

Six ingredients transform into crispy, chewy no-bake squares everyone loves and remembers.

The marshmallows are non-negotiable for texture. Jet-Puffed or Kraft brands melt the smoothest—avoid off-brands that can be grainy. Use fresh marshmallows (older ones get hard and won’t incorporate properly). For the cereal, Kellogg’s Rice Krispies have the perfect snap, but store brands work if that’s what you have. The butter should be unsalted so you control the seasoning.

No miniature marshmallows? 10 ounces of large marshmallows works—just cut them into quarters first. Want a twist? Peanut butter at half the butter amount adds richness. For a festive look, food coloring gel (not liquid) won’t thin the mixture. Skip the vanilla if you prefer a purer marshmallow flavor. Salt is optional but enhances all the flavors.

These keep at room temperature for 2-3 days in an airtight container. For longer storage, refrigerate for up to 1 week or freeze for 6 weeks. Cut into squares after fully cooled for clean edges. The cereal stays crispest when stored in a single layer.

Step-by-Step Instructions for Marshmallow and Rice Krispy Squares

This no-bake method delivers perfect texture with minimal effort and maximum flavor.

Step 1: Melt Butter and Prepare Marshmallows

In a large microwave-safe bowl, melt the 3 tbsp Unsalted Butter on high power for 45-60 seconds until completely liquid. Watch closely—you want it melted, not browned. The butter should be hot enough to begin melting the marshmallows on contact.

Immediately add all 10 oz Miniature Marshmallows to the melted butter. If using the 0.125 tsp Optional Food Coloring, add it now and stir briefly to combine. The marshmallows will begin to soften within 30 seconds from the residual heat.

Step 2: Microwave Marshmallow Mixture to Smooth Perfection

Return the bowl to the microwave and heat on high power in 30-second intervals, stirring between each, until the mixture is completely smooth. This typically takes 1.5-2 minutes total. Stop when no marshmallow lumps remain and the mixture has a glossy sheen.

Once melted, stir in the 1 tsp Vanilla Extract and 0.25 tsp Fine Sea Salt. The vanilla adds depth to the sweetness, while the salt enhances all flavors. Be thorough here—the mixture should be uniform in color and texture before proceeding.

Step 3: Incorporate Rice Krispies Cereal

Working quickly (the mixture sets fast as it cools), add all 6 cups Rice Krispies Cereal to the marshmallow mixture. Use a silicone spatula to fold gently but firmly, ensuring every piece is evenly coated. The cereal should be fully saturated but not crushed—preserve those crispy textures.

You’ll notice the mixture becomes harder to stir as it cools. This is normal. If it becomes too stiff to work with, microwave for an additional 15-20 seconds to soften slightly, but avoid over-heating which can make the final squares too dense.

Step 4: Press and Set the Mixture

Transfer the mixture to a greased 9×13-inch baking dish or a dish of similar size. Use the spatula or buttered hands to press firmly and evenly into all corners. Apply consistent pressure—the more compact the mixture, the cleaner your squares will cut later.

Let the mixture set at room temperature for 30-45 minutes until completely firm to the touch. Resist the urge to cut too soon; premature slicing results in misshapen edges. The surface should be cool and solid with no sticky residue on your finger when pressed.

Step 5: Cut and Serve

Once fully set, use a sharp knife to cut into 12-16 squares. For clean cuts, dip the knife in hot water and wipe between each slice. This prevents dragging the marshmallow mixture and ensures professional-looking edges.

Serve immediately or store in an airtight container at room temperature for up to 3 days. These squares maintain their texture best when kept in a single layer, as stacking can cause them to stick together. The cereal should retain a slight crispness with a perfectly chewy marshmallow binding.

Wine and Beer Pairings for These Flavors

Milk Pairings

Classic cold milk is my go-to pairing—the cool creaminess balances the sweetness perfectly. I recommend whole milk for its richness, but 2% milk works too. The contrast in temperature and texture makes each bite more enjoyable. 💛

Coffee Complements

A cup of hot black coffee cuts through the sweetness with its bitterness. For iced versions, cold brew with a splash of cream creates a smooth harmony. I find the caffeine boost makes these treats even more satisfying as an afternoon pick-me-up.

Fruit Juices

Cold apple cider adds a crisp, autumnal note that pairs beautifully. For a tropical twist, pineapple juice offers a bright, tangy contrast. I usually serve these with 8 oz juice boxes for kids’ parties—they’re always a hit.

Beer Options

Surprisingly, stout beers like Guinness work wonderfully—the dark, roasted flavors complement the marshmallow’s sweetness. For lighter options, a wheat beer with its citrus notes provides a refreshing contrast. I discovered this pairing at a beer festival and was amazed by how well it worked. 🍺

Frequently Asked Questions