These beautiful Dulce de Leche Swirled Tarts start with a dark chocolate crust, packed with thick swirls of chocolate, dulce de leche, and white chocolate ganache!

Some people view Cinco de Mayo as a cultural celebration. Some folks use it as an excuse to get drunk in the middle of the week, or to shovel boatloads of chips and salsa into their bocas. At my house, we use it as an excuse to mainline dulce de leche. Whether it’s swirled into pound cake, used as a churro dipping sauce, or packed into chocolate candy cups–we’re officially dulce de leche obsessed.
There are a lot of different ways to prepare dulce de leche, but my favorite way to enjoy it is when it’s cooked until very thick, like peanut butter. If I’m not workin’ hard to get a scoop of dulce de leche on my finger, then I haven’t done it right. This extra-thick dulce de leche is a perfect cake and cupcake filling, brownie inclusion, or cookie topper. It’s also the star ingredient in these gorgeous Dulce de Leche Swirled Tarts.

I typically scoff at the idea of soulmates, but I’m pretty sure that dulce de leche and chocolate are soulmates. Oh, and salt. Dulce de leche, chocolate, and salt are three-way soulmates, which is totally a thing when you’re talking about anthropomorphized ingredients. The chocolate and the salt keep the dulce de leche from becoming too cloying and sweet, while deepening the caramelized flavor. I keep intending to pair dulce de leche with other flavors in my desserts, but I love the DDL + chocolate combination so much, I can never resist putting them together once more.

These tarts start with a crisp chocolate shell that’s not too sweet, with a deep cocoa flavor. You can always swap the crust for an Easy Oreo Cookie Crust if you’d prefer. But let’s be honest, no one is here for the tart shell. The filling is the star, and the filling is kind of brilliant, if I do say so myself. (And I certainly do…) The three different flavors are all based off of the same white chocolate ganache. After mixing it up and reserving some of the white chocolate, dulce de leche is whisked into the rest, creating a dulce de leche ganache. Then, a bit more of that is separated out, and dark chocolate is added to it, resulting in a dark chocolate-dulce de leche ganache. That’s a mouthful in more ways than one! So although there are 3 different flavors in the filling, they all come together in the space of about 10 minutes, after the dulce de leche has been cooked. It’s a sly trick that makes it easy to assemble these swirled beauties.

I am READY for May to be here. Bring on Cinco de Mayo! (And Seis de Mayo, and Siete de Mayo…) April has had its good moments, but it’s also been insanely busy and stressful, and the LaBau household is collectively tired and cranky. The other morning, Jason went to go get his shoes, but grabbed my heels instead and started to try to put them on. This is not okay. We need sleep, and down time, and our yearly dulce de leche gorging session. Here’s to new months and old favorites! ¡Buen provecho, amigos!

❤️ MORE MINI TARTS YOU’LL LOVE
- Chocolate Raspberry Tarts
- Baileys Chocolate Caramel Mini Tarts
- Strawberry Rose Tarts
- Grapefruit Tarts
- Persimmon Almond Rosette Tarts
- Lemon Ginger Ice Cream Tarts
- Pistachio Rose Tarts

Dulce de Leche Swirl Pound Cake

Dulce de Leche Pumpkin Pie

Dulce de Leche Swirled Tarts
Ingredients
For the Chocolate Tart Dough:
- 5.33 oz all-purpose flour, (1 1/4 cups)
- 1 oz powdered sugar, (1/4 cup)
- .75 oz unsweetened cocoa powder, (1/4 cup)
- 1/4 tsp salt
- 4 oz unsalted butter, very cold, cubed
- 1 large egg yolk
For the Dulce de Leche Filling:
- 14 oz sweetened condensed milk, (1 can)
- 12 oz white chocolate, finely chopped – do not use white chips if they list vegetable oil or palm oil as an ingredient. You want white chocolate that contains cocoa butter only!
- 5 oz heavy cream, (1/2 cup +2 tbsp), divided use
- 1/4 tsp salt
- 1 oz unsalted butter, (2 tbsp), at room temperature
- 2.5 oz semi-sweet chocolate, (about 1/3 cup), finely chopped
Instructions
To Make the Chocolate Tart Dough:
- Combine the flour, cocoa powder, sugar, and salt in the bowl of a food processor, and pulse briefly until everything is well-blended. Add the cold cubed butter and pulse until it is in small pea-sized pieces. Add the egg yolk and pulse in 5-second bursts until the dough starts clumping together.
- Turn it out of the food processor and knead it lightly several times to incorporate any extra flour and cocoa powder. At this point, the dough can be wrapped and refrigerated for several days. If you’re ready to use it now, spray four 6-inch removable bottom tart pans with nonstick cooking spray. Press the dough into the bottom and sides of the pans in a thin, even layer.
- Freeze the shells for 30 minutes, and while they’re in the freezer, preheat the oven to 375 degrees F. Spray the tops of the tart dough with nonstick spray, then press a sheet of foil into the shells and fill the foil with dry beans, rice, or pie weights. Bake the shells for 10-12 minutes, then carefully remove the foil and weights. Bake for an additional 7-8 minutes to fully bake the shells, until puffed, dry, and fragrant. Let the shells cool completely before filling them.
To Make the Dulce de Leche Filling:
- Remove the paper wrapper from the can of condensed milk. Place it in a slow cooker then fill it with water that comes an inch above the can. Set the slow cooker to low heat, cover it, and leave it to cook for 8-9 hours. (This can be done overnight, so that you wake up to dulce de leche!) Once cooked, carefully remove the can from the water and let it cool completely before proceeding.
- Place the finely chopped white chocolate in a medium bowl. Pour 1/2 cup of heavy cream into a small saucepan and bring it to a simmer over medium-high heat. Pour the hot cream over the chopped white chocolate, and let it sit for 1 minute to soften the chocolate. After a minute, gently whisk the white chocolate and cream together until it is smooth and silky. If chunks of white chocolate remain, microwave the bowl in 10-second increments, whisking well after each one, until they are entirely melted. Finally, add the room temperature butter and salt and whisk them in.
- Separate out 1/2 cup of the white chocolate filling into a small bowl and set aside. To the remaining white chocolate, add the dulce de leche and whisk it in until smooth.
- Separate out 1/2 cup of the dulce de leche filling. Melt the semi-sweet chocolate in a small bowl, then mix the melted chocolate into the 1/2 c of dulce de leche. Add the remaining 2 tbsp of cream to thin out the chocolate mixture, if needed. You should now have a small bowl of chocolate dulce de leche filling, a small bowl of white chocolate filling, and a larger bowl of dulce de leche filling.
- Spoon the dulce de leche filling into the cooled tart shells, filling them about half full. Take a small spoon and dollop small spoonfuls of the 3 different fillings on top of a tart in a random pattern. Take a toothpick and swirl it through the filling to create a marbled pattern. Repeat with the remaining tarts. Depending on the height of your tart shells, you may be left with some excess filling. It is delicious on cookies, crackers, toast, or your fingers!
- Refrigerate the tarts until the filling is set, for about 1 hour. The tarts can be made in advance and kept in an airtight container in the refrigerator for 3-4 days. For the best taste and texture, let them sit at room temperature for about 30 minutes before serving, so the filling is soft and silky.
Recipe Notes
Measuring Tips
Our recipes are developed using weight measurements, and we highly recommend using a kitchen scale for baking whenever possible. However, if you prefer to use cups, volume measurements are provided as well. PLEASE NOTE: the adage “8 oz = 1 cup” is NOT true when speaking about weight, so don’t be concerned if the measurements don’t fit this formula.
Want to learn more about baking measurements and conversion?
Are you even serious?!??! These look OUT OF THIS WORLD!!!! They are so beautiful and they sound incredibly delicious!!! I’m giving you a virtual standing ovation, my friend. So awesome!
Haha, thank you, Erika! Pretty sure this is my first internet standing ovation–feels awesome! 😉
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Girl. This is craziness. I always think your recipes couldn’t get any more beautiful or creative and then, BAM, you post this. Those swirls are so gorgeous! Pinned!
Haha, thank you, and thanks for the Pinterest love!
Wait, what?! You can make dulce de leche in the slow cooker??? Heavens to betsy. I just fell in love with my crock a little bit more. And you. I fell in love with you a little bit more too. I will girl-crush on anyone who reveals a life changing secret like “over-night dulce de leche”. 😀
I know, right?! I love it because I hate having to baby sit the pot of dulce de leche and keep topping up the water, this is literally the most mindless way to make it. Thanks Sara!
I’m floored by how gorgeous these tarts are! Having a major drool moment!!!
Thank you Giselle!
These look so gorgeous! I am a crust lover, so the whole package sounds pretty delicious.
Three cheers for crust lovers! I feel you there. 🙂 Thanks Jill!
I need to make these ASAP! Everything in these tarts scream my name. My husband’s birthday is this week so these would be perfect to make for him! 🙂
Awww yeah, birthday tarts instead of birthday cake? I like the way you think! Happy birthday to your hubby!
You are so right–runny dulce de leche is for suckers! And I am sending many-nights-of-good-sleep mojo all y’all’s way. I mean, pretty little tarts can only keep ya going for so long!
Thanks D! I too have discovered the hard way that woman cannot live on tarts alone. Now tarts plus a few hours of sleep? That’s a different story!
I love this chocolate tart dough recipe.. I want to try it!! These tartlets are really cute and perfect for a dinner party.. don´t you just love individual portions.. 🙂 Happy week!! xoxo
Thanks Johlene! Chocolate tart dough is definitely a good one to have in the recipe books!
Wow, not only must these taste amazing but they look so gorgeous with that swirling!!! Chocolate crusts are my favorite kind on tarts too.
Thanks Amy! I agree, chocolate crusts are made for gooey caramel fillings. 🙂
Ahhh I need some of this dulce de leche in my life!! This looks awesome!
Thanks Ashley! You definitely deserve some dulce de leche in your life!