If you haven’t tried Dulce de Leche Bars yet, you’re in for a delightful treat. These bars are a luscious blend of caramel-like sweetness and a chewy oat crust, making them the perfect dessert for any occasion. Whether you’re hosting a gathering or just craving something sweet, these bars will certainly satisfy your taste buds. The buttery oat crust pairs perfectly with the creamy, rich dulce de leche, creating a dessert that is both comforting and indulgent.
The Upside of Dulce de Leche Bars

Dulce de Leche Bars are a wonderful dessert option for so many reasons. The combination of flavors and textures elevates them above typical dessert bars. The oat crust provides a hearty, chewy base, while the dulce de leche filling offers a smooth and creamy contrast. They’re easy to make, require minimal effort, and can be prepared ahead of time. Plus, they’re a hit with both kids and adults alike, making them a versatile choice for any gathering.
The Essentials
To whip up a batch of these delicious Dulce de Leche Bars, you’ll need the following essential ingredients:
- 1 1/2 cups (180 grams) all-purpose flour
- 1 1/2 cups (135 grams) rolled oats
- 1 cup (200 grams) brown sugar
- Pinch of salt
- 1 cup (226 grams) diced cold butter
- 1 can (380 grams) dulce de leche, room temperature
These ingredients come together to create a delectable treat that will have everyone coming back for seconds!
Setup & Equipment
Before you dive into making your Dulce de Leche Bars, gather the necessary equipment:
- Baking dish (9×9 inches or similar size)
- Mixing bowls
- Measuring cups and spoons
- Spatula or wooden spoon
- Parchment paper (optional, for easy removal)
Having your equipment ready will streamline the baking process and help you create perfect bars every time.
Mastering Dulce de Leche Bars: How-To

Making Dulce de Leche Bars is a straightforward process that even novice bakers can tackle. Follow these simple steps for delicious results.
Step 1: Preheat Your Oven
Preheat your oven to 350°F (175°C). This step is crucial for ensuring that your bars bake evenly.
Step 2: Prepare Your Baking Dish
Grease your baking dish or line it with parchment paper for easy removal. This will help prevent the bars from sticking and make serving a breeze.
Step 3: Combine Dry Ingredients
In a large mixing bowl, combine the all-purpose flour, rolled oats, brown sugar, and a pinch of salt. Mix well to ensure that the dry ingredients are evenly distributed.
Step 4: Cut in the Butter
Add the diced cold butter to the dry mixture. Using a pastry cutter, fork, or your hands, cut the butter into the flour mixture until it resembles coarse crumbs. This will give your crust that buttery, crumbly texture.
Step 5: Set Aside the Crust Mixture
Reserve about 1 1/2 cups of the crust mixture for the topping. You’ll use it later to create a crumbly layer on top of the dulce de leche.
Step 6: Press the Crust into the Baking Dish
Press the remaining crust mixture firmly into the bottom of your prepared baking dish. Make sure it’s evenly distributed to create a solid base for your bars.
Step 7: Spread the Dulce de Leche
Gently spread the room temperature dulce de leche over the crust. Use a spatula to ensure an even layer, making sure to reach all corners of the dish.
Step 8: Add the Topping
Sprinkle the reserved crust mixture evenly over the dulce de leche layer. This will create a delicious crumb topping that complements the creamy filling.
Step 9: Bake
Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the edges are bubbly. Keep an eye on them to avoid over-baking.
Step 10: Cool and Cut
Once baked, remove the Dulce de Leche Bars from the oven and let them cool in the dish for at least 15 minutes. After cooling, lift them out of the dish (if using parchment paper) and cut into squares or bars.
Ingredient Swaps & Substitutions

If you’re looking to customize your Dulce de Leche Bars, consider these ingredient swaps:
- For a gluten-free option, use a gluten-free all-purpose flour blend.
- Substitute coconut sugar for brown sugar for a more caramel-like flavor.
- Use vegan butter as a substitute for regular butter to make the recipe vegan.
- Try adding chopped nuts like pecans or walnuts for added texture and flavor.
These swaps can help you tailor the bars to your dietary needs or flavor preferences.
Problems & Prevention
Baking can sometimes come with its challenges. Here are some common problems and how to prevent them:
- Bars sticking to the pan: Always grease your pan or line it with parchment paper.
- Over-baking: Keep a close eye on the bars as they bake; every oven is different.
- Crust too crumbly: Make sure to press the crust mixture firmly into the pan for a solid base.
- Dulce de leche too runny: Ensure the dulce de leche is at room temperature for easier spreading.
With these tips, you can avoid common pitfalls and ensure your Dulce de Leche Bars turn out perfectly.
Save for Later: Storage Tips
To keep your Dulce de Leche Bars fresh and delicious, consider the following storage tips:
- Store them in an airtight container at room temperature for up to 3 days.
- For longer storage, refrigerate them, where they’ll last up to a week.
- You can also freeze the bars for up to 3 months. Just make sure to wrap them tightly in plastic wrap or foil.
- When ready to eat, allow frozen bars to thaw at room temperature or heat them in the microwave for a few seconds.
These storage tips will help you enjoy your Dulce de Leche Bars for as long as possible.
Reader Questions
Can I use homemade dulce de leche in this recipe?
Absolutely! Homemade dulce de leche works wonderfully in this recipe. Just make sure it’s at room temperature for easier spreading.
Can I make these bars ahead of time?
Yes, you can! These bars can be made a day or two in advance. Just store them properly to maintain freshness.
Is there a way to make these bars healthier?
Sure! You can reduce the sugar slightly and use whole grain oats for added fiber. Using coconut oil instead of butter can also be a healthier fat alternative.
What should I serve with Dulce de Leche Bars?
These bars pair wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream. A sprinkle of sea salt can also enhance the flavors beautifully!
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Save & Share
If you loved this recipe for Dulce de Leche Bars, don’t forget to save it for later and share it with your friends and family! They’ll appreciate the deliciousness as much as you do.
Indulging in these Dulce de Leche Bars is a sweet journey that combines simplicity with decadence. With just a handful of ingredients and straightforward steps, you can create a dessert that’s sure to impress. Whether they’re a part of your next gathering or a personal treat, these bars are bound to be a favorite. Happy baking!

Dulce de Leche Bars
Ingredients
- 1.5 cups all-purpose flour
- 1.5 cups rolled oats
- 1 cup brown sugar
- 1 pinch salt
- 1 cup diced cold butter
- 1 can dulce de leche room temperature
Instructions
- Preheat your oven to 350°F (175°C).
- Grease your baking dish or line it with parchment paper.
- In a large mixing bowl, combine the all-purpose flour, rolled oats, brown sugar, and a pinch of salt. Mix well.
- Add the diced cold butter to the dry mixture and cut it in until it resembles coarse crumbs.
- Reserve about 1 1/2 cups of the crust mixture for the topping.
- Press the remaining crust mixture firmly into the bottom of your prepared baking dish.
- Spread the dulce de leche over the crust evenly.
- Sprinkle the reserved crust mixture evenly over the dulce de leche layer.
- Bake for 25-30 minutes, or until the top is golden brown.
- Let cool in the dish for at least 15 minutes before cutting into squares or bars.
Equipment
- Baking dish (9x9 inches or similar size)
- Mixing bowls
- Measuring cups and spoons
- Spatula or wooden spoon
- Parchment paper (optional, for easy removal)
Notes
- For a gluten-free option, use a gluten-free flour blend.
- Substitute coconut sugar for a caramel-like flavor.
- Store in an airtight container at room temperature for up to 3 days.
