If you’ve ever thought Rice Krispy treats were “just okay,” this brown butter version will completely change your mind. Browning the butter adds a deep, nutty, caramel-like flavor that turns a childhood classic into a grown-up dessert — and finishing with flaky sea salt balances the sweetness in the most addictive way.

This recipe uses only four simple ingredients: butter, marshmallows, Rice Krispy cereal, and flaky salt. No vanilla, no condensed milk, no extras. Just technique and flavor doing the heavy lifting.

Perfect for lunchbox treats, parties, late-night cravings, or when you want something impressive without turning on the oven.

Why Brown Butter Makes All the Difference

Brown butter is made by gently cooking butter until the milk solids toast and turn golden brown. This creates rich, nutty notes similar to caramel or toasted hazelnuts. When combined with melted marshmallows, the flavor becomes deeper, warmer, and far more complex than regular butter-based treats.

Adding flaky salt on top cuts through the sweetness and creates that irresistible sweet-salty contrast.

Ingredients You’ll Need

Butter

Marshmallows

Rice Krispy cereal

Flaky sea salt

That’s it. Four pantry staples and you’re set.

How to Make Brown Butter Rice Krispy Treats

Start by melting the butter in a large pan over medium heat. Let it cook while stirring occasionally. First it will foam, then the color will deepen, and finally you’ll notice golden brown specks forming at the bottom with a nutty aroma. Once the butter is amber and fragrant, immediately lower the heat.

Add the marshmallows to the hot brown butter and stir continuously until fully melted and smooth. Remove from heat.

Fold in the Rice Krispy cereal and gently mix until everything is evenly coated. Work quickly but gently to keep the texture light and gooey.

Transfer the mixture into a greased or parchment-lined pan. Lightly press it down using a spatula or buttered hands. Do not pack it tightly — gentle pressing keeps the treats soft.

Sprinkle flaky sea salt evenly over the top while still warm. Allow to cool slightly before slicing.

Pro Tips for Perfect Texture

Use low heat when browning butter to avoid burning. Once you smell nuttiness, it’s ready.

Do not overheat marshmallows. Gentle melting keeps the treats stretchy and soft.

Avoid pressing too firmly into the pan. Compression makes them dense instead of fluffy.

Slice with a lightly greased knife for clean edges.

Storage Tips

Store at room temperature in an airtight container for up to 3 days. For best texture, enjoy within the first 24 hours while they’re extra soft and gooey.

Frequently Asked Questions

Can I use salted butter?

Yes. Just go lighter on the flaky salt topping.

Do these need refrigeration?

No. Refrigeration will harden the texture.

Can I double the recipe?

Absolutely. Use a larger pan and work quickly when mixing.

Final Thoughts

These brown butter rice krispy treats with flaky salt prove that simple ingredients can create incredible flavor. They’re nostalgic, elevated, and dangerously easy to make. Once you try them this way, you’ll never go back to the basic version.