Creamy Dulce de Leche Made with Sous Vide for Perfect Results

Sous Vide Dulce de Leche is an easy, foolproof way to make the silkiest version of this popular caramel spread, and it tastes incredible.

Most of the batch shown here ended up in bonbons that I’ll be sharing soon. Before that, I wanted to show how simple and reliable it is to make dulce de leche using a sous vide immersion cooker.

Many home cooks have turned to the condensed milk shortcut—boiling unopened cans on the stove, baking them in a water bath, or using a slow cooker—because it’s a low-effort alternative to making caramel from scratch, which often requires continuous stirring. I’ve made cajeta from goat’s milk the traditional way, and it’s worth every minute, but sometimes you want the convenience of a can and a method that practically runs itself.

When we first got our sous vide cooker, dulce de leche was the first non-meat recipe I tried. It’s even included in the manual that came with our unit. After experimenting with condensed milk dulce de leche using the stovetop, oven and slow cooker, I was eager to test the sous vide approach.

The batch in the middle photo cooked for ten hours and came out fairly light in color, but very thick, silky and delicious. The other jars were left in the water bath for an additional two hours. That extra time produced a deeper color, a silkier texture and a more complex, caramelized flavor. Both results are tasty, but the longer-cooked version has more depth.

Starting with canned condensed milk is a quick route to dulce de leche, regardless of the method. But if you have the time and inclination, making caramel from scratch yields a flavor that often beats the canned shortcut—much of that difference comes down to Maillard and caramelization reactions that develop richer tastes and aromas.

What I appreciated most about the sous vide method is how hands-off it is: set the temperature, submerge the milk, and walk away. No stirring, no scorching, no babysitting—similar to the slow cooker can method but without the metallic aftertaste that some people notice when heating condensed milk inside the can.

Sweet Tips For Success:

• You can cook condensed milk in its original can, but many people notice a slight metallic flavor from that method. There are also concerns around heating sealed cans, so I prefer safer alternatives.
• Mason jars are my preferred container. Don’t tighten lids completely before cooking—leave them just snug so pressure can equalize or the jar could crack. Broken jars mean wasted caramel.
• If you use vacuum-seal bags, set your sealer to the wet setting to prevent messes. If you don’t have a sealer, use the water-displacement method with good-quality freezer bags to push air out before sealing.
• Cook for 10 hours for a lighter, creamy dulce de leche, or extend to 12 hours for a darker color and more pronounced caramel flavor. The 12-hour result is deeper and tastier for many palates.
• Be careful when removing hot jars or bags from the water bath—use tongs or a slotted spoon and transfer them to an ice bath to cool more quickly.
• To limit evaporation and keep the water bath temperature stable, cover the pot or container with foil or plastic wrap. There are also purpose-made covers for sous vide containers, but simple household solutions work well.
• If you’re concerned about cooking food in plastic, mason jars are a straightforward alternative. Research your preferred materials and choose what feels safest to you.