Desserts
This 13x9-inch Rice Krispie treats recipe delivers perfectly chewy bars with crispy edges—no oven required. The secret lies in the precise marshmallow-to-butter ratio, melted together until glossy before folding in cereal.
I've perfected this no-bake method over years of testing, ensuring every batch turns out with that signature texture and nostalgic crunch.
The beauty of this recipe is its simplicity: just three core ingredients, melted in a pot, then pressed into a pan. No fancy equipment needed—just patience while the mixture cools slightly before shaping.
The 13x9-inch pan creates thick, cuttable bars perfect for parties or holiday gifting, with clean edges that stay crispy even after slicing.
What sets these apart is the balance of chewy centers and crispy edges, achieved by pressing firmly into the pan and chilling completely. Optional customizations like chocolate drizzle or mix-ins (peanut butter, M&M's) let you personalize without compromising the classic flavor.
The result? A dessert that's foolproof, nostalgic, and always a crowd-pleaser.
Best of all, these treats keep well for days, making them ideal for meal prep or last-minute gatherings. Whether you're recreating childhood memories or introducing Rice Krispie treats to new generations, this no-bake method delivers every time. Ready to make them?
Ingredients for rice krispie treats recipe 13x9
Three core ingredients transform into nostalgic, no-bake perfection in a 13x9-inch pan.
| Ingredient | Amount | Notes |
|---|---|---|
| Marshmallows 🍫 | 10 oz | Mini marshmallows preferred for even melting |
| Unsalted Butter 🧈 | ¾ cup | Cut into small cubes for even melting |
| Rice Krispies Cereal 🍚 | 6 cups | Original or classic variety only |
| Vanilla Extract 🌿 | 1 tsp | Pure extract for authentic flavor |
| Salt 🧂 | ¼ tsp | Fine sea salt for balanced flavor |
| Dark Chocolate Chips 🍫 | ½ cup | Optional for drizzling, 60% cocoa |
| Peanut Butter 🥜 | ¼ cup | Optional mix-in, creamy variety |
| Non-Stick Cooking Spray 🫧 | 1 tbsp | For 13x9-inch pan coating |
| Wax Paper 📄 | 1 sheet | For pressing and chilling |
| Parchment Paper 📄 | 1 sheet | For easy removal from pan |
The marshmallows and butter are the foundation—mini marshmallows melt more evenly than full-size, creating that signature glossy sheen. Kroger or Walmart carry them year-round, but specialty baking stores like Sur La Table offer premium options. Butter should be unsalted to control the flavor profile; Land O'Lakes or Plugrá brands melt smoothly without graininess. Measure carefully: the 10-ounce marshmallow weight ensures proper texture, not too sticky or dry. For the cereal, stick to original Rice Krispies—the crispness matters, and no other variety replicates that perfect crunch.
No vanilla extract? Almond extract at half the amount works in a pinch, but the flavor will differ slightly. Short on butter? Coconut oil in equal measure melts similarly, though it adds a subtle coconut note. The optional chocolate chips and peanut butter should be high-quality—Ghirardelli chocolate chips melt beautifully for drizzling, and natural peanut butter blends smoothly into the mix. If you're making these ahead, store the dry ingredients separately until ready to assemble; the marshmallow-butter mixture can be prepped up to 2 days in advance and reheated gently.
Press the mixture firmly into the pan for crispy edges, then chill completely before slicing—at least 2 hours in the fridge ensures clean cuts. The treats keep well in an airtight container for 5 days at room temperature or 1 month refrigerated. For gifting, wrap individual bars in wax paper and tie with twine. The 13x9-inch pan yields about 16 bars, perfect for parties or holiday treats. If storing leftovers, separate layers with parchment to prevent sticking.
Why You'll Love This Recipe
- The secret’s in the timing: let the butter and marshmallows melt slowly until golden. That crispy Rice Krispie shell with the gooey vanilla-kissed center? It’s the kind of texture combo that makes you pause mid-bite—every single time.
- One-Pot Magic: I swear by this—just butter, marshmallows, and cereal in a single pan. No mixing bowls, no sticky hands, and honestly, the cleanup is just a quick wipe-down. That’s how you make a classic without the fuss.
- Caramelized Crunch: The secret’s in the timing: let the butter and marshmallows melt slowly until golden. That crispy Rice Krispie shell with the gooey vanilla-kissed center? It’s the kind of texture combo that makes you pause mid-bite—every single time.
- Party in a Pan: Between us, this is my go-to for last-minute gatherings. Cut into squares, and it’s instant crowd-pleaser status. Need a teacher gift? A scout meeting snack? Or just a way to look like you planned ahead? This does it all—no fancy decorating required.
Step-by-step instructions for no-bake chewy Rice Krispie bars
Follow this precise method for perfectly chewy bars with crispy edges every time.
Melt Butter and Marshmallows Together
Line a 13x9-inch baking pan with the parchment paper, leaving an overhang on two sides for easy removal. In a large, heavy-bottomed saucepan over medium-low heat, combine the 0.75 cup unsalted butter (cut into small cubes) and 10 oz marshmallows. I use mini marshmallows for even melting—they disappear completely without clumping.
Stir frequently with a silicone spatula, scraping the bottom and sides to prevent burning. The mixture will look shimmery and smooth when fully melted, about 5-7 minutes. Remove from heat immediately once all marshmallows dissolve—overcooking creates a grainy texture. Add the 1 tsp vanilla extract and 0.25 tsp salt and stir until fully incorporated.
Mix in Cereal and Optional Add-Ins
Working quickly, add the 6 cups Rice Krispies Cereal to the melted mixture and stir vigorously with a wooden spoon until completely coated. The cereal should absorb all the liquid, leaving no dry spots. For extra flavor, fold in the 0.25 cup peanut butter at this stage—it adds richness that blends perfectly with the marshmallow base.
If using the 0.5 cup dark chocolate chips, sprinkle them evenly over the mixture and gently fold them in with a spatula. The chocolate will melt slightly from the residual heat, creating pockets of molten goodness throughout. Transfer the mixture to the prepared pan and press down firmly using a greased spatula or wax paper-coated hands to create an even layer.
Press and Chill for Perfect Texture
Cover the pan tightly with the wax paper and press down firmly with your hands or a flat-bottomed glass to ensure even distribution. This step is crucial—it eliminates air pockets and creates that signature chewy texture. Press until the surface looks smooth and compact, about 2-3 minutes of consistent pressure.
Refrigerate the pan for at least 2 hours or until completely firm. The treats will firm up as they chill, making them easier to slice. I like to place the pan on a wire rack in the fridge to prevent condensation from forming on the bottom. For best results, let them chill overnight—they'll develop deeper flavor and maintain their shape when sliced.
Cut and Serve
Once fully chilled, use the parchment overhang to lift the treats out of the pan. Using a sharp chef's knife, cut into 16 equal squares (about 2x2 inches each). For clean cuts, dip the knife in hot water between slices—this prevents the treats from sticking and tearing.
Serve immediately for gooey texture or store in an airtight container at room temperature for up to 5 days. These treats are perfect for parties, lunchboxes, or as a quick dessert. The combination of crispy edges, chewy center, and optional chocolate drizzle makes them irresistibly satisfying.
Pro Tips For Making Rice Krispie Treats Recipe 13x9
- STIR CONSTANTLY ON HIGH: The second the butter hits the pan, turn the heat to medium-high and keep that spoon moving—no breaks, no distractions. I used to let it sit for even 10 seconds, and the butter would seize or burn before the marshmallows dissolved. High heat melts butter faster, but you’ve got to stay on it like it’s a job interview.
- USE MEDIUM marshmallows: Giant marshmallows? They’ll clump like sad, lumpy snowballs. Mini marshmallows? They’ll turn to powder before the butter’s ready. Medium-sized ones melt evenly and coat the cereal properly—just like the recipe intended. (Yes, I had to buy a separate bag for this.)
- PRESS GENTLY, NOT HARD: Dumping the hot mixture into the pan and mashing it down like you’re angry at it will compact the treats into a dense brick. Instead, spread it out with a greased spatula, then press lightly—just enough to even it out. You’re not making a cinder block here.
- LET IT SET 20 MINUTES: Cutting them too soon means sticky, crumbly messes that fall apart in your hands. Walk away for 20 minutes—go make a sandwich, take a shower, whatever. The residual heat will finish setting them up right. (I know, I know, but trust me on this.)
Make-ahead tips for this recipe
Prep Ahead Strategy
Make the marshmallow-butter mixture up to 2 days in advance and store it in an airtight container at room temperature. Reheat gently in a microwave-safe bowl for 30-second intervals until smooth and glossy—this preserves the perfect texture.
I always prep this base the night before holidays to save time on busy mornings. 💫
Pan Prep Shortcut
Spray your 13x9-inch pan with non-stick cooking spray the night before and leave it uncovered on the counter. This gives the spray time to fully dry, preventing sticking without extra effort.
I also line the pan with parchment paper ahead of time to streamline assembly day. Just press the mixture in and chill—no last-minute prep needed!
Mix-In Prep
Measure and portion all optional mix-ins (chocolate chips, peanut butter, etc.) into small bowls the day before. Store them in the fridge until ready to use—this keeps ingredients like peanut butter from softening at room temperature. I use quart-sized mason jars for easy storage and portion control. 🥜
Chilling Efficiency
Place your chilled pan of treats on a wire rack inside the fridge to maximize airflow. This prevents condensation from forming on the bottom, which can make the treats soggy.
For even faster chilling, transfer the pan to the freezer for 1 hour before completing the full 2-hour fridge chill. I find this especially helpful when making treats for same-day events.
Storage Solutions
Store completed treats in an airtight container with layers separated by parchment paper to maintain crisp edges. Vacuum-sealed bags work beautifully for long-term storage—these treats stay fresh for 1 month refrigerated or 3 months frozen.
Label containers with dates to track freshness. For gifting, wrap individual bars in wax paper and tie with twine for a professional touch. ✨
Freezing for Later
Freeze uncut treats in the pan, wrapped tightly in plastic wrap and foil. When ready to serve, thaw at room temperature for 1 hour before slicing. The texture remains perfect—just slightly softer than fresh treats.
I often make double batches and freeze half for future cravings. Thawed treats are ideal for quick snacks or last-minute dessert additions. ❄️
Nutrition facts
Frequently asked questions
Why do my treats turn out sticky instead of chewy?
The most common cause is under-pressing or insufficient chilling. Press the mixture firmly into the pan for 2-3 minutes using wax paper or a glass—this eliminates air pockets. Chill for at least 2 hours (overnight is best) to set the texture properly. If they're still sticky, your marshmallow-to-butter ratio may be off—try 10 oz marshmallows for every 0.75 cup butter.
Can I make these treats in a different pan size?
Yes, but the texture may vary. For a 9x13-inch pan, use the full recipe as written. For smaller pans (like 8x8-inch), reduce the recipe by 25%—the treats will be thicker. Always press firmly and chill completely. A 13x9-inch pan gives the best balance of chewy centers and crispy edges for clean slicing.
What’s the best way to keep the edges crispy?
Press the mixture firmly into the pan and chill completely before cutting. Store treats in an airtight container with parchment paper between layers to prevent moisture buildup. For extra crispiness, freeze the uncut pan for 1 hour before completing the 2-hour fridge chill. Avoid stacking bars directly on top of each other—they’ll lose crispness faster.
Can I substitute regular marshmallows for mini marshmallows?
You can, but mini marshmallows melt more evenly and create a smoother texture. Regular marshmallows may leave small pockets of unmelted fluff. If using them, cut the full-size marshmallows into quarters first and melt them over low heat for 2-3 minutes longer to ensure complete dissolution. Stir constantly to prevent burning.
How do I fix broken or crumbly treats?
If your treats crumble when cutting, they likely didn’t chill long enough. Press the broken pieces back together and refrigerate for another 1 hour. For a quick fix, melt 1 tbsp butter and brush it over the broken edges—this helps bind the crumbs. Store them in an airtight container to prevent further crumbling. The texture will improve as they sit.