Dulce de Leche

Pro tips

• Keep the jar fully submerged in water throughout cooking to ensure even heat distribution and prevent the milk from scorching.
• Monitor water level frequently and top up with hot water as needed to prevent the pot from boiling dry.
• The longer you cook, the darker and more intensely caramelized the dulce de leche becomes; start checking at 2 hours if you prefer lighter results.
• Allow jars to cool completely before opening to prevent burns and steam release.

Storage & make-ahead

Store cooled jars in the refrigerator for up to 2 weeks; reheat gently in a water bath or microwave before serving if dulce de leche has hardened.

Equipment

mason jars with lids · large pot · water bath

How long does dulce de leche take to cook?

Typically 2–3 hours in a water bath at a gentle simmer. Cooking time varies based on water temperature and desired darkness; longer cooking yields darker, more caramelized results.

Is it safe to cook sweetened condensed milk in a sealed jar?

Yes, when done properly in a water bath with the jar fully submerged and the water level monitored to prevent boiling dry. Never place a sealed jar directly on heat or in an oven.

Can I use a different size jar?

Yes, but adjust cooking time—larger jars take longer. Ensure the jar is heat-safe glass and fully submerged in water throughout cooking.

What's the difference between dulce de leche and regular caramel?

Dulce de leche is made from milk and sugar (via condensed milk), creating a creamier, fudgier texture than traditional caramel made from sugar and butter.

Can I make dulce de leche in an instant pot?

Yes—use the high-pressure setting for 30–40 minutes (unopened can submerged in water), then allow natural pressure release. This is faster and safer than a stovetop water bath.