Sugar Free Condensed Milk

What sweetened condensed milk is and why it matters for low carb baking

Sweetened condensed milk is a thick, syrupy version of milk where most of the water has been cooked off and sugar is added to thicken it further. I always describe it as a cheat code for desserts because it does the work of sugar and cream in one ingredient.

The traditional process removes about 60% of the water content, which concentrates the flavor and produces that smooth, caramel note from the heated sugars. That’s what makes it so useful in everything from pie fillings to candy. The problem is all that concentrated sugar, which is exactly what my sugar free version replaces.

The right pot makes a real difference

I use a heavy-bottomed saucepan every time. Thin pots create hot spots that scorch the cream and leave you with burnt chunks at the bottom. I learned that the hard way on my second batch.

Stainless steel or enamel-coated cast iron both work well. Skip aluminum or copper because the acid in the milk reacts with those surfaces and throws off the flavor. A 2-quart or 3-quart saucepan is the right size for this recipe.

How I know when to pull it off the stove

This is the question I get more than any other, and I understand why. It does not look thick in the pan. It looks too thin when you take it off the heat, and that’s exactly right.

I use the spoon test every time:

1. Dip a spoon into the mixture.
2. Run your finger across the back.
3. If the line holds and doesn’t fill in, it’s done.

The other thing I watch for is volume. It should be roughly half of what you started with. Once it passes the spoon test, pull it immediately. The refrigerator does the rest of the thickening over about two hours. If you let it go too long on the stove, it gets dark and picks up a burnt edge that ruins the batch.

Recipes I use this in

I keep a jar of this in my fridge at all times because it shows up in so many of my recipes. It’s my shortcut ingredient for anything that needs sweetened cream without the carbs.

Here are the ones I make most often:

• Keto toffee
• Keto panna cotta
• Mocha coffee ice cream
• Vietnamese iced coffee (I stir a tablespoon into strong cold brew)
• Fudge (any two-ingredient fudge recipe that calls for sweetened cream)

Ways to customize the flavor and texture

The base recipe is what I reach for 90% of the time, but I’ve played around with a few variations.

Deeper caramel notes

I add a tablespoon of brown sugar free sweetener (like Brown Swerve or Truvia Brown Sugar Replacement) alongside the allulose. A teaspoon of molasses works too if you want even more depth.

Thicker texture

It thickens on its own in the fridge, but if you need it thicker at room temperature (for spreading on coconut joys or dipping), I stir in a tablespoon of powdered milk after it comes off the heat.

How to make a dairy free version

I swap in a can of full-fat coconut milk for the cream and use ghee instead of butter. Same process: heat everything together, simmer until reduced, and chill.

1. Combine coconut milk, sweetener, and ghee or vegan butter in a saucepan over medium heat.
2. Simmer until it reduces and thickens, stirring occasionally.

The flavor has a subtle coconut note that works well in dairy free ice cream and tropical desserts. The consistency is slightly different from the cream version, but I’ve used it in the same recipes without any problems.

How long it keeps and how to store it

Refrigerator

I store mine in a mason jar with a tight lid. It keeps in the fridge for up to 2 weeks. It will thicken significantly as it chills, so when I pull it out for a recipe, I either warm it in a hot water bath or stir in a splash of warm water to loosen it up.

Since there are no preservatives, I keep an eye on it after the first week. If it smells off or changes color, I toss it.

Freezer

For longer storage, I freeze it in a labeled container for up to 3 months. I thaw it overnight in the refrigerator before using.