Brown Butter Rice Krispie Treats
These are classic Rice Krispie treats with one small move that changes everything. Browning the butter first makes them nutty and rich, with a deep caramel edge that the marshmallows just soak up.

You still get the same soft, gooey bite you love. It just tastes like you spent way more time on them than you actually did.
Why These Treats Are So Good
They taste like a homemade caramel square met a cereal bar and decided to hang out. The brown butter puts a toasty, almost nutty flavor right up front, and it tames the sweetness so the whole thing stays balanced.
I skip the vanilla and just add a little salt because the browned butter carries enough smoky flavor on its own. The result is a bar that still tastes like a childhood treat, just a little more grown up.
Ingredients

- 6 tbsp unsalted butter: you want unsalted so you can control the salt, and it browns more evenly than salted butter.
- 1 (10 oz) bag miniature marshmallows: fresh, soft marshmallows melt into the butter best; stale ones can turn grainy.
- 6 cups Rice Krispies cereal: measure from the box, but don’t pack it down or the bars get dense.
- ¼ tsp fine sea salt: just enough to lift the brown butter flavor.
- Flaky sea salt, for topping: optional, but a light sprinkle right before serving makes the whole bar pop.
Variations / Substitutions
- Swap the cereal: any crisp rice cereal works, but a puffed brown rice cereal adds a deeper toastiness.
- Add chocolate: fold in ½ cup of mini chocolate chips right after the cereal, while the mixture is still warm but not scalding.
- Make them nutty: stir in ⅓ cup of toasted chopped pecans or almonds with the cereal.
- Go dairy-free: use a good vegan butter stick; it browns a little faster so watch the color closely.
Creamy Butter Chicken Curry makes an easy main to round out the meal with this recipe.
How To Make Brown Butter Rice Krispie Treats
Step 1: Brown the Butter

Melt the 6 tbsp butter in a large pot over medium heat. Once it melts, keep it on the heat without stepping away. It will foam, then the bits at the bottom will turn golden and smell nutty, about 5 to 7 minutes. The second you see brown flecks and that toasty smell, pull the pot off the burner. Butter goes from browned to burnt fast, so moving it off the heat stops the cooking right where you want it.
Step 2: Melt the Marshmallows

Turn the heat down to low, add the 10 oz bag of marshmallows, and stir them constantly with a silicone spatula. They will soften and melt into the brown butter, turning into a glossy, golden mixture. This takes about 2 to 3 minutes. Keep stirring until you don’t see any white streaks, then take the pot off the heat immediately. Overcooking the marshmallows at this stage makes the finished treats tough.
Step 3: Fold in the Cereal

Pour in the 6 cups of Rice Krispies cereal all at once. Work quickly but gently, folding the cereal into the marshmallow mixture with the spatula. You want every piece coated, but don’t squash and smash it. A few uncoated bits are fine. Overmixing forces air out and makes the bars dense and hard, so stop the second the cereal looks evenly distributed.
Step 4: Press and Slice

Scrape the warm mixture into a buttered 8×8 inch baking pan. Using a buttered spatula or your hands, press it into an even layer without compacting it too hard. Light pressure keeps the treats soft. Let them cool at room temperature for at least 30 minutes so they set, then slice into squares. If you’re using flaky sea salt, sprinkle it on right before you cut, so it stays crisp and doesn’t dissolve. Serve once they’re firm enough to hold their shape.
A Few Notes Before You Start
- Don’t step away when browning butter.: It can go from golden to bitter in seconds. Swirl the pot once or twice so the milk solids brown evenly.
- Use fresh marshmallows.: A bag that’s been open for weeks can melt into a grainy mess because the cornstarch coating absorbs moisture.
- Butter your tools.: A buttered spatula and buttered hands keep the sticky mixture from clinging and make pressing it into the pan mess-free.
- Salt the top, not the mix.: A flaky salt finish, not table salt, gives you little hits of salty crunch that cut the sweetness without making the whole bar taste salty.
This recipe makes an 8×8 inch pan with nice thick treats. Double it for a 9×13 inch pan.
| Pan size | Butter | Marshmallows | Rice Krispies |
|---|---|---|---|
| 8×8 inch | 6 tbsp | 1 bag (10 oz) | 6 cups |
| 9×13 inch | 12 tbsp (¾ cup) | 2 bags (20 oz) | 12 cups |
Storing Leftovers
- Room temperature:: Store them in an airtight container for up to 3 days. They’ll stay soft if you keep the container sealed.
- Re-crisp:: If they get a little soft on the counter, a few seconds in a toaster oven on the lowest setting firms up the edges without browning them further. They’re best eaten the day they’re made, but a quick warm crisp does wonders.
Frequently Asked Questions
Can I brown the butter ahead of time?
Yes. Brown it, pour it into a heatproof bowl, and refrigerate until solid. Melt it gently over low heat when you’re ready to make the treats.
Why did my bars turn out hard?
Hard bars usually mean the marshmallow mixture got too hot or was stirred too long after the cereal went in. Keep the heat low and fold just until combined.
Can I use a different cereal?
Absolutely. Any crisp rice cereal works, but avoid puffed grains that aren’t coated, they absorb the marshmallow too fast and get chewy in a dry way.
Do I need vanilla extract?
No. The brown butter brings enough warm flavor, and vanilla can actually muddy that toasty note. If you really miss it, add ½ tsp with the marshmallows.

Brown Butter Rice Krispie Treats Recipe
Ingredients
Method
- In a large pot over medium heat, melt the butter. Keep cooking, swirling occasionally, until it turns golden with brown flecks and smells nutty, 5 to 7 minutes. Immediately remove from heat.
- Reduce heat to low, add the marshmallows, and stir constantly until completely melted and smooth, about 2 to 3 minutes. Remove from heat as soon as no white streaks remain.
- Fold in the cereal gently until evenly coated.
- Press the mixture into a buttered 8×8 inch pan in an even layer. Let cool at least 30 minutes, then slice. Top with flaky salt just before serving if desired.
