Making sour cream at home is both easy and rewarding. It contains no additives, no fillers or thickeners, and there is no plastic tub to discard. But the best reward: your homemade sour cream contains probiotics and it tastes absolutely delicious! In this tutorial on making sour cream at home, we'll cover:
Choosing a Cream
Different creams will produce sour cream with different thicknesses. Choose the one that works best for you.
- Pasteurized heavy cream or whipping cream will yield the thickest sour cream.
- Half-and-half can be used, but the sour cream will have a thinner consistency. Dry milk powder can be added to improve the consistency, if desired.
- Raw cream can be used but will yield a thinner consistency than if pasteurized whipping cream is used. Learn more about using raw cream to make sour cream here!
- Avoid ultra-pasteurized (UP) or ultra-high temperature (UHT) cream, as it yields inconsistent results when used for culturing sour cream.
Sour Cream Ingredients
- 1 packet Sour Cream Starter Culture
- 1-4 quarts Heavy Cream
If you'd like to make homemade sour cream with other ingredients, check out our tips below for alternative ways to make sour cream.
Instructions for Making Sour Cream
- Heat cream to 145°F and hold at that temperature for 45 minutes.
- Cool cream to 77ºF.
- Add starter culture and stir gently until powder is fully dissolved.
- Transfer to a glass jar; cover with a coffee filter or tight-weave cloth and secure with a rubber band.
- Place the jar in a warm spot, 74-77°F, to culture for 16-18 hours.
- Once the sour cream has set, place a tight lid on the jar and store in the refrigerator.
- Sour cream will keep in the refrigerator for 2-3 weeks.
Step by Step Photo Tutorial
1. Slowly heat 1-4 quarts of pasteurized cream to 145°F and hold for 45 minutes. It’s OK just to heat the cream to 77°F, but your sour cream will be thinner.
2. Cool the cream to 77°F. If you need to speed up the cooling process, you can place the pan of heated cream in a sink or basin of cool water.
3. Add 1 packet of starter culture.
4. Stir gently until the powder is fully dissolved.
5. Transfer the cream to a glass container.
6. Cover the container with a towel or coffee filter secured with a rubber band and place the jar in a warm spot, 74-77°F, to culture for 16-18 hours.
7. Once the sour cream has set, cover it with a tight lid and store it in the refrigerator. Sour cream will keep in the refrigerator for 2-3 weeks.
You can tell that your sour cream has set when it becomes more or less uniform in appearance. It should appear as one solid mass and be relatively smooth.
Because store-bought sour cream generally contains thickeners and other added ingredients, it is generally thicker than homemade sour cream.
Luckily, there are a few ways to make your homemade sour cream thicker too.
1. Add Dry Milk Powder
There are several varieties of dry milk to choose from. When using dry milk powder to thicken sour cream you'll need to combine a small amount of it with the cream prior to heating the cream. Make sure the milk powder is mixed in well. You can slowly add more cream to the milk powder until it's well combined, then proceed with heating the cream.
2. Heat the Cream to a Higher Temperature
In step 1, heat the cream to 180°F and hold at that temperature for 30 minutes. Make sure the cream cools completely prior to adding the starter culture.
While sour cream is traditionally made with a Sour Cream Starter Culture, there are other ways to culture cream, to make a similar product. When using a different culture, there may be variations in flavor, so try a few and pick the one you like best.
1. Use Cultured Buttermilk or Countertop Yogurt
Use 1 tablespoon yogurt or buttermilk per cup of cream. Culture as you would buttermilk or yogurt, according to the instructions included with your particular starter culture.
2. Use Milk Kefir Grains or Finished Kefir
Use 1 tablespoon finished milk kefir per cup of cream or 1 teaspoon grains for up to 4 cups of cream.