Brown Butter Dulce de Leche Brownies (Rich & Gooey)

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Brown Butter Dulce de Leche Brownies are the recipe I never knew I needed until one lazy Sunday afternoon changed everything 🍯 I was testing a basic brownie batter, minding my own business, when I decided to brown the butter first just to see what would happen. Reader, it changed the game. Add a swirl of rich dulce de leche on top and you get something that tastes like a caramel candy bar had a baby with your favorite fudgy brownie 🍫 Honestly, I have made this pan three times in two weeks. That should tell you everything.

What Are Brown Butter Dulce de Leche Brownies? 🤔

So what exactly are Brown Butter Dulce de Leche Brownies? Think of your classic fudgy brownie base, but the butter gets toasted first until it turns golden and smells like toffee. That nutty brown butter flavor gets folded into a rich chocolate batter, then a generous ribbon of dulce de leche gets swirled right through the middle before baking.

The result is a brownie that is deeply chocolatey, slightly caramelized, and gooey in all the right places. It is basically a fancier, more grown up brownie without any extra fuss in the kitchen.

What You’ll Need for Brown Butter Dulce de Leche Brownies 🛒

Here is everything you will need to make these brown butter dulce de leche brownies come together in one bowl, no fancy equipment required.

• Unsalted butter (1 cup / 2 sticks): this is what gets browned first, so do not swap it for margarine or the magic will not happen.
• Dulce de leche (1 cup, canned or jarred): the caramel swirl that makes these brownies so memorable, homemade works too if you have the patience.
• Granulated sugar (1 1/2 cups): for sweetness and that classic shiny brownie crust on top.
• Brown sugar (1/2 cup, packed): adds moisture and a deeper caramel note that pairs so well with the dulce de leche.
• Eggs (3 large, room temperature): they bind everything and give the brownies their fudgy structure.
• Vanilla extract (2 teaspoons): rounds out the caramel and chocolate flavors.
• All purpose flour (3/4 cup): keeps things fudgy rather than cakey, spoon and level it so you do not overmeasure.
• Cocoa powder (3/4 cup, unsweetened): the chocolate backbone of the whole recipe.
• Salt (1/2 teaspoon): balances the sweetness, do not skip it.
• Flaky sea salt (optional, for topping): a sprinkle on top makes the caramel flavor pop even more.

Step-by-Step Instructions for Brown Butter Dulce de Leche Brownies 👩‍🍳

• Brown the butter: melt butter in a light colored saucepan over medium heat, swirling often, until it turns golden brown and smells nutty, about 5 to 7 minutes. Pour into a heatproof bowl right away so it does not burn.
• Mix the wet ingredients: whisk the browned butter with granulated sugar and brown sugar until combined. Add eggs one at a time, then stir in vanilla.
• Add the dry ingredients: sift in the flour, cocoa powder, and salt. Fold gently just until no streaks remain, overmixing will make the brownies tough.
• Layer and swirl: pour half the batter into a lined 9×9 pan, drizzle half the dulce de leche over it, then repeat with the rest of the batter and dulce de leche. Use a knife to swirl everything together.
• Bake: bake at 350°F (175°C) for 30 to 35 minutes, until the edges look set and a toothpick comes out with a few moist crumbs.
• Cool completely: let the brownies cool in the pan for at least an hour before slicing, this step is hard but so worth it for clean cuts.

Serving Suggestions 🍽️

These brown butter dulce de leche brownies are rich enough to stand on their own with a cup of coffee or a glass of cold milk. That said, if you want to go all in, warm a square in the microwave for 10 seconds and add a scoop of vanilla ice cream on top, the caramel gets all melty again.

They also make a great gift when cut into small squares and stacked in a box with parchment paper between layers. Honestly, I have brought these to three different get togethers and they never last past the first hour.

Tips For The Perfect Brown Butter Dulce de Leche Brownies ✨

• Use a light colored pan when browning butter so you can actually see the color change and avoid burning it.
• Room temperature eggs blend more smoothly into the batter and help the brownies bake evenly.
• Do not skip lining the pan with parchment paper, it makes lifting the brownies out so much easier.
• Let the brownies cool completely before cutting, warm brownies will fall apart instead of slicing clean.
• Store leftovers in an airtight container at room temperature for up to four days, or in the fridge for up to a week.

Brownie Questions You Might Have 💭

Can I use store bought dulce de leche?

Absolutely, store bought works great and saves you time. Just make sure it is soft enough to swirl, warm it in the microwave for a few seconds if it feels too thick straight from the jar.

Why did my brownies turn out cakey instead of fudgy?

This usually happens from overmixing the batter or adding too much flour. Try spooning the flour into your measuring cup instead of scooping directly from the bag, and stop mixing as soon as the dry ingredients disappear.

Can I freeze these brownies?

Yes, they freeze beautifully. Wrap individual squares in plastic wrap, then place them in a freezer bag for up to three months. Thaw at room temperature or warm briefly in the microwave.

What if I do not have a 9×9 pan?

An 8×8 pan works too, just add a few extra minutes to the bake time since the brownies will be slightly thicker. A 9×13 pan will work as well but the brownies will be thinner and bake faster, so start checking around 20 minutes.

Why You’ll Fall In Love With These Brownies 💛

There is something about the combination of nutty brown butter and gooey dulce de leche that feels a little bit fancy without being complicated. These brownies check every box, fudgy in the middle, slightly crisp on top, and swirled with caramel that never gets boring bite after bite.

Plus, the recipe comes together with ingredients you probably already have, aside from maybe the dulce de leche. If you love a dessert that tastes like it took way more effort than it actually did, this one is for you. I honestly cannot go back to plain brownies now.

The Story Behind These Brownies 🎬

Funny enough, this recipe almost did not happen. My first attempt at browning the butter went a little too far and it turned bitter instead of nutty, so that whole batch went straight in the trash. Lesson learned, brown butter needs your full attention and cannot be left alone for even a minute.

The second try was the one that stuck, and I remember tasting the warm batter straight off the spoon and knowing this recipe was a keeper. If you want to see more behind the scenes shots and other dessert ideas like this one, come find me on Pinterest, I pin new recipes there all the time.

Craving more rich chocolate treats? Be sure to check out my Ultimate Fudgy Chocolate Brownies
or my famous Ultimate Chocolate Cake for another decadent chocolate dessert!