Making homemade dulce de leche is much simpler than it looks. With just one ingredient and some patience, you can turn a can of sweetened condensed milk into a silky, caramelized sauce that’s far superior to most store-bought versions. Gently simmering the unopened can produces a thick, glossy spread that’s perfect for drizzling over ice cream, filling cookies, or using as a topping for cakes and pies.

One-Ingredient Dulce de Leche from Sweetened Condensed Milk
This is one of the easiest recipes you’ll try. The simplicity comes not only from using a single ingredient but from the dependable stovetop method. Simmering the sealed can in water prevents burning and yields a consistently smooth, golden dulce de leche without stirring or monitoring the pot constantly.
Because the can remains sealed during cooking, the result is shelf-stable. I often simmer several cans at once to have jars of dulce de leche on hand for up to three months. It’s an ideal make-ahead treat for gifts, last-minute desserts, or a quick sweet fix.

Glue Removal Tip
Remove the paper label and any adhesive before cooking. If left on, the label glue can dissolve into the water and cling to your pot. Use a gentle adhesive remover to dissolve stubborn glue, and scrub the can clean before simmering. Some generic cans use stronger glue than branded ones, so take care to clean them thoroughly.

Dulce de Leche Recipe
Equipment
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Kitchen Scale (optional)
Ingredients
- 14 ounces sweetened condensed milk (1 can)*
Instructions
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Remove the label and any glue from the can.14 ounces sweetened condensed milk
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Leave the can sealed and place it upright in a medium pot. Pour water into the pot until it covers the can by at least 2 inches.

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Bring the water up to a gentle simmer over high heat, then lower the heat to maintain a simmer. Simmer for 3 hours, topping up the water as needed to keep the can submerged.

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Remove the can carefully with tongs and let it cool completely before opening. Opening while hot can cause the dulce de leche to spray from the can.

Notes
Tips:
- If you cook in an aluminum pot, add a splash of white vinegar or lemon juice to the water to reduce scale buildup.
- Avoid cans with pull tabs; cans opened with tabs may be more likely to rupture during cooking.
- Keep the can submerged under at least 2 inches of water at all times. Check every 20–30 minutes and add water as needed.
- Laying the can on its side can reduce rattling in the pot while simmering.
- Always let the can cool completely before opening to avoid burns and splattering.
- If the dulce de leche appears grainy after opening, whisk vigorously or blend briefly for a smooth texture.
- Enhance the flavor with a pinch of flaky sea salt, a teaspoon of vanilla paste, or a splash of dark rum.
- After opening, transfer any leftovers to an airtight, food-safe container—do not store in the original can.
Alternative Cooking Methods:
- Slow Cooker: Remove the label and place sealed cans on their sides in a slow cooker. Cover with at least 2 inches of hot water and cook on LOW for 8–10 hours. Let cans cool completely in the water before removing and opening.
- Oven: Pour sweetened condensed milk into a pie dish and cover tightly with foil. Place the dish in a water bath and bake at 425°F for 90–105 minutes, or until it reaches the desired color. Cool to room temperature before using.
Make-Ahead: Sealed cans of dulce de leche can be stored at room temperature for up to 3 months—ideal for batch prepping.
Storage: Once opened, keep dulce de leche in an airtight container in the refrigerator for up to 2 weeks, or freeze for up to 3 months. Thaw overnight in the fridge. If too firm after chilling, warm briefly in the microwave (10–15 seconds) to soften.
Calories from Fat 18
Customize Your Consistency
I typically simmer for 3 hours for a thick, spreadable consistency that works for most applications. You can adjust the time to get a thinner or thicker result:
| Cook Time | Color | Consistency | Use |
|---|---|---|---|
| 2 hours | light | saucy | drizzling over desserts |
| 3 hours | deep golden | spreadable | spreading and dipping |
| 4 hours | dark | fudgy | filling cookies, making candy |
How to Make Dulce de Leche Step-by-Step
Submerge the Can: Remove the label and adhesive from a 14-ounce can of sweetened condensed milk. Leave the can sealed and place it in a medium pot. Add water until the can is covered by at least 2 inches of water.

Simmer the Can: Bring to a simmer, then reduce heat to maintain a gentle simmer. Cook for 3 hours, replenishing water as needed to keep the can submerged. Checking every 20–30 minutes makes this easy to manage.

Cool and Open: Use tongs to remove the can and allow it to cool completely before opening. Opened too soon, the contents can spray and cause burns. Once cool, open and stir or whisk if needed to smooth any texture irregularities.

How to Store, Freeze, and Reheat
Sealed cans of dulce de leche can be stored at room temperature for up to three months. After opening, transfer any leftovers to an airtight container and refrigerate for up to two weeks or freeze for up to three months. Thaw frozen dulce de leche overnight in the refrigerator. If chilled dulce de leche is too firm, warm briefly in the microwave for 10–15 seconds to soften.
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