Preparation Time: 5 minutes
Resting/Fermentation Time: 12–24 hours
Chilling Time: 4 hours
Total Time: 16–28 hours
Difficulty Level: Easy
Recipe Yield: 2 cups
Cuisine: French
Course: Condiment, Sauce, Dairy Preparation
Ingredients
- 2 cups (480 ml) heavy cream
- 2 tablespoons cultured buttermilk
Equipment Needed
- Medium glass jar or bowl
- Clean spoon or whisk
- Cheesecloth or clean kitchen towel
- Rubber band or jar ring
- Refrigerator-safe container
Ingredient Notes
Heavy Cream
Use high-quality heavy cream containing at least 36% milk fat. The richness of the cream directly impacts the final texture and flavor. Avoid ultra-pasteurized cream if possible, as traditionally pasteurized cream cultures more effectively.
Buttermilk
Cultured buttermilk contains active bacterial cultures that ferment the cream and create the signature tangy flavor. Make sure the buttermilk is fresh and contains live cultures for the best results.
Instructions
Step 1: Prepare the Cream Mixture
Pour the heavy cream into a clean glass jar or medium bowl. Add the buttermilk and whisk gently until fully combined. The mixture should appear smooth and uniform.
Avoid vigorous mixing, as excessive agitation is unnecessary and may introduce unwanted air bubbles.
Step 2: Cover and Rest
Cover the container with a clean kitchen towel or cheesecloth. Secure it with a rubber band if necessary.
Do not use an airtight lid during fermentation. The beneficial bacteria need access to air while the mixture cultures.
Step 3: Ferment at Room Temperature
Place the container in a warm area of your kitchen where the temperature remains between 70°F and 75°F (21°C to 24°C).
Allow the mixture to sit undisturbed for 12 to 24 hours.
During this time, the beneficial bacteria from the buttermilk will slowly ferment the cream. The mixture will thicken considerably and develop a pleasant tangy aroma.
Step 4: Check for Doneness
After approximately 12 hours, inspect the mixture.
Properly cultured crème fraîche should:
- Be noticeably thicker than liquid cream
- Hold its shape when stirred
- Have a mild tangy aroma
- Display a smooth and creamy consistency
If the mixture still appears thin, allow it to ferment for several additional hours.
Step 5: Stir and Chill
Once the desired thickness is achieved, gently stir the cultured cream until smooth.
Cover the container with an airtight lid and place it in the refrigerator for at least 4 hours.
Chilling further thickens the crème fraîche and improves its flavor.
Step 6: Serve and Enjoy
Your homemade crème fraîche is now ready to use.
Serve it as:
- A topping for baked potatoes
- A garnish for soups
- A sauce base for pasta dishes
- A topping for fresh berries
- A filling for pastries
- A companion to smoked salmon
- A creamy addition to desserts
Tips for Success
Maintain Proper Temperature
The fermentation process depends heavily on temperature. Cooler kitchens may require a longer culturing period, while warmer kitchens can speed up fermentation.
Use Fresh Ingredients
Fresh cream and buttermilk produce the best flavor and texture. Expired dairy products may not culture properly.
Avoid Contamination
Always use clean utensils and containers. Introducing unwanted bacteria can affect both flavor and safety.
Customize the Flavor
For a richer taste, ferment the mixture closer to 24 hours. For a milder flavor, begin checking around the 12-hour mark.
Storage Instructions
Store homemade crème fraîche in an airtight container in the refrigerator.
Properly stored, it will remain fresh for up to 10 days.
Always use a clean spoon when serving to maintain freshness and prevent contamination.
Serving Suggestions
This creamy cultured dairy product pairs beautifully with a variety of dishes.
Try it with:
- Roasted vegetables
- Creamy soups
- Fresh fruit
- Pancakes and waffles
- Cheesecakes
- Mashed potatoes
- Pasta sauces
- Grilled meats
- Seafood dishes
- Homemade desserts
Its luxurious texture and subtle tang make it one of the most versatile ingredients in any kitchen.
Frequently Asked Questions
Can I use low-fat cream?
Heavy cream is strongly recommended because the higher fat content creates the signature texture and richness of crème fraîche.
Why didn’t my mixture thicken?
Common causes include:
- Kitchen temperature too cold
- Buttermilk lacking active cultures
- Ultra-pasteurized cream
- Insufficient fermentation time
Can I freeze crème fraîche?
Freezing is not recommended. The texture may separate and become grainy after thawing.
Is homemade crème fraîche safe?
Yes. When prepared with fresh ingredients and proper sanitation, homemade crème fraîche is safe and delicious.
Nutrition Information
Serving Size: 2 tablespoons
Servings Per Recipe: 16
Approximate Nutrition Per Serving
- Calories: 110
- Total Fat: 11 g
- Saturated Fat: 7 g
- Cholesterol: 40 mg
- Sodium: 8 mg
- Total Carbohydrates: 1 g
- Sugars: 1 g
- Protein: 1 g
- Calcium: 2% Daily Value