If you have ever wanted to know how to make caramel with condensed milk, this is the only recipe you need.

This is my mom’s legendary slow cooker caramel sauce, and it’s for anyone who’s ever burned, crystallized, or panicked over stovetop caramel. Just three ingredients transformed into a perfectly smooth, thick, rich caramel that practically makes itself while you go about your day.

This slow cooker method is forgiving, make-ahead friendly, and produces silky caramel without standing over a hot saucepan. No stirring, no babysitting, no candy thermometer, just pure golden caramel that seals right in the jar and keeps for months. Once you make it this way, there is no going back.

Sweetened condensed milk, a little salt, and a splash of vanilla go into jars, get submerged in the slow cooker, and come out hours later as the most luscious, velvety caramel sauce you have ever tasted. Make a big batch, tuck the jars away, and you will have homemade caramel on hand for every dessert, gift, or midnight snack craving that comes your way.

You may have heard this called dulce de leche, and technically that is exactly what it is. Traditionally made by slowly heating a unopened can of sweetened condensed milk until it transforms into a thick, deeply caramel sauce.

Homemade caramel is intimidating. This method makes it forgiving. 

Ingredients For Caramel with Condensed Milk

Three simple ingredients are all that stand between you and the most incredible homemade caramel sauce of your life.

• Sweetened condensed milk: the star of the show and the only thing you truly need. The slow heat transforms it into a deep, rich, golden caramel with zero fuss.
• Salt: balances the sweetness and gives the caramel that irresistible salted caramel flavor. Add a little extra if you love a more pronounced salty finish.
• Vanilla: rounds out the flavor and adds a warm, aromatic depth that takes this caramel from good to absolutely incredible.

The result is rich, buttery, and borderline dangerous to keep in the house. Measurements can be found in the recipe card below.

How to Make Caramel with Condensed Milk

I’ve stood over the stove top, sweat dripping down my back as I tried for the third time in a row to produce a silky, yet thickened caramel sauce. This slow cooker caramel sauce takes the stress out of trying and you turn out something delicious every time! This is truly one of the easiest recipes you will ever make. The slow cooker does everything.

1. Mix: Stir the sweetened condensed milk, salt, and vanilla together until well combined.
2. Fill: Pour the mixture into 7 to 8 jelly jars, filling each to about half an inch from the top. Secure the lids and rings.
3. Submerge: Place the jars in the slow cooker and cover completely with water.
4. Cook: Cover and cook on low for 8 to 12 hours. The longer it cooks, the thicker and darker the caramel will get. Watch that the water level doesn’t get too low. 
5. Seal: Remove the jars carefully and let them cool. They will self-seal and can be stored in a cool place for 6 to 12 months.

That is it. Walk away, let the slow cooker work its magic, and come back to sealed jars full of the most beautiful homemade caramel you have ever seen.

Common Issues with Homemade Caramel Sauce

Let’s go over some of the common problems of using sweetened condensed milk to make a caramel sauce, or in our house we call it, dulce de leche. 

Why does my caramel turn grainy?

I have a few jars of caramel sauce in my pantry at all times, but one of those jars has a secret. My caramel turned out grainy. 

This is typical crystallization that can happen when you are making homemade caramel. And in fact, even when making sweetened condensed milk caramel in the slow-cooker your sauce can become grainy from those darn sugar crystals. 

Sugar crystals work like magnets, so once there’s one, there will be more. Especially if you’re working stovetop, but in this case, because we are using sweetened condensed milk you have a lower chance of that happening.

How to Avoid Grainy Caramel

1. Limit Moving the cans: Avoid lifting the lid, or moving the cans. Once that water is hot you need to set the cans and forget them.
2. Allow Even Cooling: I know you’re excited, but let that caramel cool before opening the cans. You can either gently lift them out of the slow cooker with tongs to rest on a hot pad or place them in cold water for 10-15 minutes. 

How to Fix Grainy Caramel Sauce

Ok, it happened, you ended up with little sugar crystals in your caramel sauce. Now what do you do? 

1. Try reheating the caramel with a little extra water or cream in a saucepan to melt the sugar crystals back down. Be sure to keep the caramel in a solid mass as any caramel on the side of the pan may retain the crystals and cause the issue all over again. 
2. If that happens and a little caramel gets on the pan, use a damp paper towel to clean it off. 

My caramel is too thick after it cools.

• You waited so long and your stomach was growling in anticipation only to find a mass of caramel vs a pourable one. What went wrong? Why is your caramel sauce so thick?
  • A: First, it’s important to remember that caramel naturally becomes considerably thicker as it cools. That means that sometimes all you have to do is warm it slightly to thin it out. But if not, then let’s problem solve it!
• If that didn’t fix it and your caramel is still thick:
  • A: Place the caramel in a saucepan with a splash of heavy cream or water and reheat over medium low heat. Make sure you’re stirring constantly until it melts back into a smooth sauce.
  • Don’t make this mistake if your caramel is too thin!
  • Sometimes the opposite happens. If your caramel is too thin it merely needs longer with the heat. But WAIT!! First, allow the caramel too cool completely before putting it back on the heat otherwise you will not get a good picture of just how thick it is. 
  • Because this is in a can, just scoop it into a dish over a water bath or straight into a saucepan over medium low heat, stirring constantly until simmering and thickening. 

My caramel didn’t turn brown

• If you open the cans and they look like a more golden cream vs brown you didn’t cook the cans for long enough. Follow the same method for thin caramel sauce. 

• How long will Caramel Sauce Keep for
• In the fridge 2-3 weeks in a sealed container. 
• In sealed jars it will keep  12-18 months.

You said you Call it Dulce De Leche

Techinically because we are using sweetened condensed milk that is the hispanic version of caramel, but elsewhere, you’re right, they are different products.  

“What is the difference between caramel sauce and dulce de leche?” (maybe we can add this as a photo?)

Caramel SauceDulce de Leche

Base	Sugar + dairy/fat	Sweetened condensed milk
Texture	Pourable sauce	Thick, spreadable
Flavor	Buttery, caramelized sugar	Rich, milky caramel
Best for	Drizzling	Filling/spreading

Can I make caramel without a candy thermometer?

Yes, this method doesn’t need one at all!

What can you use caramel sauce for?

We love to use our homemade slow cooker caramel sauce for all kinds of thigs:

Ice cream topping

Apple dip

Fruit Platter

Smores during the summer

Charcuterie boards with pretzels, marshmallows, fruits and cookies

Over pie, cake or brownies

In cookies

Milkshakes are awesome with caramel!

Substitutions and Variations

This recipe is wonderfully simple, but there is a little room to play. If you love a bold salted caramel flavor, bump up the salt to suit your taste. For a deeper, almost toffee-like caramel, cook it closer to the 12-hour mark. For a lighter, more pourable sauce, pull it at 8 hours. You can also skip the vanilla if you prefer a more classic, pure caramel flavor. Or try other extracts like coconut, almond, or cinnamon to add a twist to the flavor.

What to Serve with Slow Cooker Caramel Sauce

This caramel sauce makes everything better. Drizzle it over 

• Apple Crisp
• Cheesecake
• Banana Pudding
• Cinnamon Rolls
• Brown Butter Rice Krispies

Can You Make Caramel Sauce Ahead of Time?

Yes, you can make caramel months in advance and store it in mason jars in the fridge for 2-3 weeks. If you’d like to store it longer, here’s how to can caramel sauce. 

How to Can Caramel Sauce

This is not an approved method by the FDA, but it’s what my mom and I have always done. 

• Prep the jars: Wash and sterilize small mason jars and lids to protect your family from disease.
• Fill with sweetened condensed milk: Pour the uncooked, room-temperature sweetened condensed milk directly into the jars, leaving 1 inch of space.
• Clean the rims: Wipe the glass rims perfectly clean with a cloth to avoid sugar crystals. Secure the two-piece canning lids until tight but not overtightened.
• Cook in a slow cooker: Place the jars flat into a slow cooker then fill with in room-temperature water until the water covers the jars 1 to 2 inches over the tops of the lids.
  • DO NOT put the cold jars into hot water as the glass could explode!
• Cook on Low: Cover the slow cooker and cook on LOW for 8 to 10 hours. 
• Cool and check the seal: Carefully lift the hot jars out using tongs and place them on a towel to cool for up to 24 hours. Listen for the classic, “pop” as they form a vacuum seal. 

Storing and Reheating Caramel Sauce

Because the jars self-seal during cooking, this caramel sauce keeps in a cool, dry place for 6 to 12 months unopened. Once a jar is opened, store it in the refrigerator and use it within a couple of weeks. To bring it back to a pourable consistency, simply warm it gently in the microwave or set the jar in a bowl of warm water for a few minutes.

Now that you know how to make caramel with condensed milk, there is absolutely no reason your pantry should ever be without a jar of this stuff. It is rich, smooth, deeply flavored, and so effortless to make that you will find yourself whipping up batch after batch to give as gifts, keep on hand for desserts, or honestly just eat by the spoonful.

Other Caramel Desserts Worth Trying

• Snickers Caramel Brownies
• Caramel Popcorn
• Chocolate Caramel Molten Lava Cake
• Dulce De Leche Banana Cream Pie [+ Video]
• Cheesecake Walnut Caramel Apple Crisp Bars

Watch How This Recipe is Made