Sweet, gooey, and buttery, these dulce de leche bars are pure indulgence in every bite. With a crumbly oat crust, rich dulce de leche filling, and a sprinkle of toffee, they’re an easy yet impressive treat.
If you’re a fan of caramel, you’ll fall head over heels for these dulce de leche bars. They have the perfect mix of chewy oats, buttery crumbs, and that irresistible sweet filling. They look bakery-worthy but come together with simple steps you can handle in no time. Whether you’re baking for a potluck, holiday, or just because, these bars are a guaranteed hit.
Why You’ll Love These Dulce de Leche Bars
- Layers of flavor and texture. Buttery oat crust, gooey filling, and a crunchy topping.
- Surprisingly simple. A handful of pantry staples make something that tastes fancy.
- Perfect for sharing. The recipe makes a big pan, ideal for gatherings or gifting.
- A caramel lover’s dream. Dulce de leche brings a depth of flavor you can’t resist.
Key Ingredients
Here’s a quick look at the ingredients you’ll need. See the full recipe below for ingredient quantities and complete instructions.
- Flour & oats – The base of the crust and topping, giving structure and a little chew.
- Brown sugar – Adds sweetness plus a subtle molasses note.
- Butter – Holds everything together with rich, buttery flavor.
- Dulce de leche – The star! Sweet, creamy, and caramel-like.
- Toffee bits – A fun finishing touch for extra crunch and caramel depth.
How to Make Dulce de Leche Bars
Making these bars is straightforward, but a few extra details will help you get the best results.
Start with the crust.
The mixture of flour, oats, brown sugar, and butter might look crumbly, but that’s exactly what you want. Pressing most of it firmly into the baking pan gives you a sturdy, buttery base. A quick pre-bake ensures it holds together and doesn’t get soggy under the filling.
Warm the dulce de leche.
Straight from the can or jar, it can be thick and hard to spread. A few minutes on the stovetop loosens it up so you can smooth it evenly over the crust without tearing it.
Add the layers.
Toffee bits bring a little crunch and caramel-like flavor, while the reserved crumb mixture on top gives the bars that golden, rustic finish. Don’t worry if the topping doesn’t cover every inch. The peeks of dulce de leche make them even more tempting.
Bake until golden.
The top should look lightly browned and set. That’s your cue to pull them out of the oven. Over-baking will make the bars too firm and dry out the filling, so watch closely near the end.
Cool before slicing.
Patience pays off here. Let the bars cool completely so the dulce de leche firms up. Cutting too soon means messy edges and more oozing than you’ll want.
Tips for Success
- Use parchment paper or foil. Lining the pan makes it much easier to lift the bars out and cut them cleanly.
- Don’t skip the pre-bake. That quick 10 minutes in the oven helps the crust set and prevents the filling from soaking in too much.
- Soften the dulce de leche. A few minutes on the stove makes it spreadable.
- Check the edges for doneness. The bars are ready when the edges look golden and the top is set. This visual cue is more reliable than just baking for the minimum time.
- Let them cool fully. Warm bars will be too gooey to cut neatly.
- Cut with a sharp knife. Wiping the knife between cuts will give you neat slices, especially since the filling is sticky.
- Make ahead. These taste even better the next day as the flavors meld.
Variations and Serving Ideas
- Nutty twist. Add chopped pecans or almonds with the toffee bits.
- Chocolate lovers. Sprinkle chocolate chips over the dulce de leche before baking.
- Salted caramel vibe. Finish with a light sprinkle of flaky sea salt.
- Dress them up. Serve warm with vanilla ice cream for an easy plated dessert.
How to Store
Room temperature: Store in an airtight container up to 3 days.
Refrigerator: Keep up to 5 days for extra freshness.
Freezer: Wrap well and freeze up to 2 months. Thaw overnight before serving.
Irresistible Gooey Bliss
If you love desserts that balance rich, gooey filling with a buttery crunch, these dulce de leche bars will be your new go-to. Simple enough for everyday baking but special enough for a celebration, they’re the kind of recipe you’ll want to make again and again.
More Gooey Bar Recipes
Dulce de Leche Bars
Ingredients
- 1 1/2 cups (180 g) all-purpose flour
- 1 1/2 cups (120 or 149 g) quick-cooking or old-fashioned oats
- 1 cup (200 g) firmly packed light brown sugar
- 1/4 teaspoon salt
- 1 cup (226 g) unsalted butter, softened
- 1 13.4-ounce can (380 g) dulce de leche
- 1 cup (160 g) toffee bits
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Instructions
- Preheat oven to 350°F (175°C). Line a 9" x 13" baking pan with parchment paper.
- In a large bowl, combine flour, oats, brown sugar and salt. Using a pastry blender or fork, cut in butter until mixture is crumbly. Reserve 1/4 of crumb mixture for topping. Press the remaining crumb mixture into the bottom of the prepared pan. Bake 10 minutes.
- In a small saucepan, heat dulce de leche over low heat for 3-4 minutes, stirring frequently, to soften slightly.
- Spread the dulce de leche over crust. Sprinkle evenly with toffee bits. Then, sprinkle with remaining crumb mixture.
- Bake 25-30 minutes or until golden brown. Cool 15 minutes.
- Run a knife around sides of pan to loosen bars. Allow to cool completely before cutting into bars.
Notes
- Recipe adapted from Betty Crocker.
- Dulce de leche: Look for it in cans or jars near the sweetened condensed milk or in the international foods aisle.
- Pan lining: For easiest removal and clean cuts, line your pan with parchment paper, leaving a bit overhanging the sides.
- Cutting tip: Let the bars cool completely before slicing, and wipe the knife between cuts for neat squares.
- Storage: Store in an airtight container at room temperature up to 3 days, refrigerate up to 5 days, or freeze up to 2 months.
25 Comments on “Dulce de Leche Bars”
Just went to a party and both desserts were from B or B. Yay!!!
oh my goodness, i LOVE dulce de leche. these must be amazing! xoxo
These bars are lovely! Great recipe 🙂
YES PLEASE!!!
Heck yes! These look amazing!
Your bringing Christmas early Santa 🙂
I’m going to eat the screen.
These look absolutely incredible – I love dulce de leche and would definitely add a sprinkle of salt for the ultimate salty sweet experience 🙂
I made these last night & they disappeared! Thanks for sharing all of your delicious recipes.
This sounds perfect. I will make these today for my sister who is a dulce the leche addict (and having a baby right now)! 🙂
I made these this evening and can confirm that they are as scrumptious as they look in the photos! Absolutely delicious and I will definitely make them again. Thank you for sharing such a fantastic recipe
Can you share the recipe for the Dulce de Leche..tnx! i love all your posted recipes. Godspeed!
Can’t wait to try these as soon as I drop everything to go to the grocery store for some dulce de leche. Your recipes are superb and always right on. I can just taste these already. Mahalo for the recipe.
What is Dulce de Leche? How is it packaged and where do I get it? I live in Indiana. I am old and must make these before I die!
Hi, Patty. Dulce de leche is much like caramel. It’s usually in a can or jar. Look for it near the condensed milk or maybe in the Hispanic foods section.
My family loves these. They last about a day here and they barely wait for them to cool. Also, I found chocolate toffee bits and use them instead of straight toffee. Could that be why they go so fast?
Chocolate is always a good idea! 🙂
In this time of Covid-19, my daughter made these for our Sunday Family Dinner this past Sunday. This is one of the only bar cookies I absolutely ADORE! Simply delicious! I’m not a big sweets person at all and I swear, tho it would make me sick as a dog, I could eat the entire tray!
Because of Covid-19 we couldn’t find toffee bits at the grocery store (went to 2, gave up – and who knew there’d be a run on toffee chips!), my daughter went to the gas station down the street to get 3 Heath bars as a substitute. Only 1 Heath bar left, so she also got a Score bar (also toffee) – last one as well, and to fill in the rest, a butterfinger bar (All 3 were about 2 oz. each). I’m sure this is delicious with the toffee bits, but with these three different candy bars crushed and used in place of the bits, the dessert was spectacular! Followed the rest of the recipe to a T. Desperate times call for desperate measures! You need to repost this for 2020! It’s THAT good! Thank you!
I’m glad you liked them, Ann! And bravo for your improvising!
I meant a Skor candy bar. Dang that auto-correct!
can these be made in advance? if so, how many days and how should they be stored?
Hi, Michelle. They should keep for 3 or 4 days at room temperature in an airtight container. Longer than that, and I would freeze them.
These are absolutely delicious. But don’t forget to run knife around edge and cut into bars before they are cool. Otherwise you will need a chisel to get them out of pan.
I’m glad you liked them, Mary!
Warm the Dulce de Leche in a bowl of hot water – less clean-up. Save 1 1/2 cups of crumbs for top.. Delicious.