Mom's Best Recipes
Recipe

Crème Fraîche

Thick, tangy, and spoonable, this 2-ingredient crème fraîche is the secret weapon for silky sauces and cozy bowls.

Author By Matt Campbell
4.8
A small glass jar of thick homemade crème fraîche on a light stone kitchen counter with a spoon resting beside it in soft natural window light
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Crème fraîche is one of those ingredients that makes you feel like you have your life together, even if dinner is just a baked potato and a chaotic salad kit. It is thick like sour cream, tangy like yogurt, and somehow smoother than both. The real flex is that it is more heat-friendly than sour cream, so you can stir it into warm sauces and soups with a lot less stress.

This recipe is the classic, low-drama version: cream plus a little cultured buttermilk, then you let time and good bacteria do their thing. No special equipment, no tiny packets, no mystery.

Measured heavy cream and cultured buttermilk on a light stone kitchen counter next to a clean jar and spoon, ready for mixing in soft natural light

Why It Works

  • Thick and spoonable: After resting, it turns into a creamy, stable spread you can dollop, swirl, or whisk into dressings.
  • Heat-friendly: Crème fraîche is more resistant to curdling than sour cream or yogurt, so it is a great move for warm sauces and soups (still keep the heat gentle and avoid hard boiling).
  • Flavor you can steer: Make it mild, or let it hang out longer for more tang. You are in charge.
  • Accessible ingredients: Just heavy cream and cultured buttermilk, which most grocery stores have year-round.

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Storage Tips

Refrigerate: Store crème fraîche in a clean, tightly covered jar in the fridge for 7 to 10 days for best quality. It may last a bit longer, but it will continue to slowly develop flavor, so it can get tangier over time.

Refrigerate promptly: Once it has thickened at room temperature, move it to the fridge right away to keep it in the safe, happy zone.

Keep it clean: Use a clean spoon every time. Double-dipping is how you invite the wrong microbes to the party.

Can you freeze it? You can, but it may separate and get grainy when thawed. If you do freeze it, use the thawed crème fraîche in cooked dishes like soups, casseroles, or sauces rather than as a topping.

If you see liquid on top: A little whey separation is normal. Stir it back in.

When to toss it: Discard if you see mold (especially pink, orange, or fuzzy spots), if it smells rotten or bitter, if it turns slimy, or if you notice fizzing.

Common Questions

Is crème fraîche the same as sour cream?

No. They are close cousins, but crème fraîche is usually higher fat and less sharply tangy. The big practical difference is that crème fraîche is more resistant to curdling in warm sauces than sour cream or yogurt (though very high heat, boiling, or lots of acid can still push any dairy too far).

What if I cannot find cultured buttermilk?

Use 1 tablespoon plain, unsweetened yogurt or kefir with live cultures as the starter instead. (Skip anything flavored, sweetened, or packed with stabilizers if you can, since those can change the texture.) The flavor and thickness may vary a bit, but you will still get a tangy crème fraîche-style result.

Why is my crème fraîche still runny?

Most commonly it just needs more time or a warmer spot. Let it sit another 6 to 12 hours. Also make sure you used heavy cream, not half-and-half. Low-fat dairy will not thicken the same way. A good doneness cue: it should look thick like loose sour cream and mound slightly on a spoon (it will firm up more after chilling).

Does it need to be kept at a specific temperature while it cultures?

Room temperature is fine. A cozy range is about 70°F to 78°F. If your kitchen runs cold, put the jar in the oven with the light on (oven OFF), or set it on top of the fridge where it is gently warm.

Can I use ultra-pasteurized cream?

Yes, it can still work, but it may take longer to thicken. If you have the choice, heavy cream that is not ultra-pasteurized can culture a little more predictably.

How do I know if it went bad?

Crème fraîche should smell pleasantly tangy and dairy-sweet. Discard it if you see any mold (especially pink, orange, or fuzzy spots), if it smells rotten or sharply unpleasant, if it turns slimy, or if you notice fizzing or carbonation.

How do I use crème fraîche?

Dollop it on tacos, chili, baked potatoes, and roasted vegetables. Stir it into tomato soup, pan sauces, and pasta. Whisk it with lemon and herbs for a fast dressing. Or sweeten it with honey and vanilla and put it on berries.

I started making crème fraîche because I got tired of babying sauces. You know the moment: you have a skillet of something good, you want it creamy, and sour cream is sitting there like a dare. Crème fraîche is the friend that shows up on time and does not cause problems. I keep a jar in the fridge and use it like a flavor cheat code, especially on weeknights when I want dinner to taste like I tried harder than I did.