The smell of brown butter hits you first — nutty, warm, and impossible to ignore — followed by a ribbon of dulce de leche that pulls you back to childhood and late-night kitchen experiments. These Rice Krispie treats take that nostalgia, crank up the richness, and add a little cinematic drama: crackling cereal kissed with cinnamon sugar and wrapped in glossy, marshmallow-gilded brown butter. Bite in and you get a toasty, caramel-sweet moment worth sharing.
Why make this recipe
- It elevates a classic with browned butter and dulce de leche for complex, irresistible flavor.
- Quick to pull together but impressive to serve — perfect for parties, potlucks, or a cozy weekend treat.
- The cinnamon-sugar cereal and sea salt finish create a balanced bite: sweet, toasty, and a little sophisticated.
How to make Brown Butter Dulce de Leche Rice Krispie Treats
Ingredients:
- 5 Tablespoons Butter
- ¼ teaspoon Vanilla Extract
- 10 Cups Mini Marshmallows (divided)
- 6 Cups Rice Krispies Cereal (cinnamon sugar flavored, see note)
- ½ teaspoon Sea Salt (fine grain)
- ½ Can Dulce de Leche
Directions:
- Spray a 9×9-inch pan with non-stick spray and line it with a foil or parchment paper sling. Spray again.
- Place a large pot on the stove over medium heat, add your butter and let it melt and then brown. *See notes below for browning butter.
- Once the butter is browned, remove from the heat and add the salt and 8 cups of mini marshmallows. Stir until everything is completely melted and smooth. If you need to put it back on the heat to finish melting the marshmallows, that is fine. You just don’t want the browned butter to burn.
- Once it is smooth, add vanilla and stir again.
- Measure out the rice krispies cereal in a large bowl. Pour the melted marshmallows over the rice krispies and mix well.
- Add in the remaining marshmallows while still warm.
- Lightly press about half of the rice krispies mixture into your prepared pan (see note). Flatten it down so it is even in the pan and then spread the dulce de leche all over the rice krispies in an even layer.
- Top with the rest of the rice krispies mixture and lightly press it around until it is evenly spread into the pan. Let it set at room temperature until cooled.
How to serve Brown Butter Dulce de Leche Rice Krispie Treats
- Cut into squares with a sharp knife (wipe the blade between cuts for cleaner edges). Serve at room temperature so the dulce de leche is soft and the textures sing together.
- For a fancier presentation, dust lightly with cinnamon sugar or drizzle a little extra warm dulce de leche on top.
How to store Brown Butter Dulce de Leche Rice Krispie Treats
- Store in an airtight container at room temperature for up to 3 days. Layer with parchment between layers to prevent sticking.
- For longer storage, refrigerate up to 5 days; bring to room temperature before serving to soften the dulce de leche layer.
Tips to make Brown Butter Dulce de Leche Rice Krispie Treats
- Brown the butter slowly over medium heat, swirling the pan often. Watch for amber color and a nutty aroma — remove immediately so it doesn’t go past browned to burnt.
- When melting marshmallows, work quickly and keep heat gentle. If the marshmallow mixture firms up, put it briefly back on low heat and stir until smooth.
- Lightly oil your hands or a spatula when pressing the mixture into the pan to avoid sticking and over-compressing (you want a slight lift and chew).
- If your dulce de leche is very thick, warm it briefly (microwave in 10-second bursts or warm in a small saucepan) until spreadable but not pourable.
Variations
- Chocolate Swirl: Warm ¼ cup chocolate chips with 1 tbsp cream and swirl over the dulce de leche before topping.
- Nutty Crunch: Fold in ½ cup toasted chopped pecans or hazelnuts to the cereal mixture for extra texture.
- Salted Caramel: Sprinkle flaky sea salt on top after pressing the top layer for a salty-sweet finish.
FAQs
Q: Can I use regular marshmallows instead of mini marshmallows?
A: Yes — roughly the same volume works, just chop larger marshmallows slightly or allow a bit more melting time.
Q: What if my marshmallow mixture firms up before I finish mixing?
A: Return the pot to very low heat and stir until smooth, or microwave the mixture in short bursts while stirring.
Q: Can I make these ahead for a party?
A: Absolutely. Make them a day ahead and store in an airtight container at room temperature. If you refrigerate, let them sit at room temp for 20–30 minutes before serving.
Q: Is there a gluten-free option?
A: Use gluten-free crispy rice cereal and confirm your marshmallows are gelatin-based and labeled gluten-free.
Conclusion
If you want a reference for technique or inspiration, I like the detailed twist on browned butter and dulce de leche in this Oh Sweet Basil Brown Butter Dulce de Leche Rice Krispie Treats post, and for another lovely take with step-by-step photos see the version at Lily P Crumbs Brown Butter Dulce de Leche Rice Krispie Treats. Try this recipe with someone you love — the warmth of brown butter and the sweet stretch of dulce de leche always make ordinary moments feel a little cinematic.
Brown Butter Dulce de Leche Rice Krispie Treats
Ingredients
Method
- Spray a 9x9 inch pan with non-stick spray and line with foil or parchment paper sling, then spray again.
- In a large pot over medium heat, melt the butter and let it brown.
- Once browned, remove from heat, add salt and 8 cups of mini marshmallows, stirring until melted and smooth.
- If necessary, return pot to low heat to finish melting marshmallows.
- Stir in vanilla extract.
- In a large bowl, measure out the rice krispies cereal and pour the melted marshmallows over the cereal, mixing well.
- Add the remaining marshmallows while still warm.
- Lightly press half of the mixture into the prepared pan.
- Spread dulce de leche evenly over the pressed rice krispies.
- Top with the remaining rice krispies mixture and press evenly in the pan.
- Let set at room temperature until cooled.
- Cut into squares with a sharp knife, cleaning the blade between cuts for cleaner edges.
- Serve at room temperature for soft dulce de leche and optimal texture.
- For fancier presentation, dust with cinnamon sugar or drizzle warm dulce de leche on top.
- Store in an airtight container at room temperature for up to 3 days, separated with parchment if necessary.
- For longer storage, refrigerate for up to 5 days and bring back to room temperature before serving.