Ingredients
- 1 cup heavy cream (preferably not ultra-pasteurized)
- 1 tablespoon buttermilk or plain yogurt with live cultures
Instructions
- Pour the heavy cream into a clean glass jar or bowl.
- Add the buttermilk or yogurt and stir gently until fully combined.
- Cover loosely with a lid or clean kitchen towel.
- Let sit at room temperature (around 70–75°F / 21–24°C) for 12–24 hours until thickened.
- Check after 12 hours; it should be thick, creamy, and slightly tangy.
- Once thickened to your liking, stir gently and refrigerate until fully chilled. It will continue to thicken as it cools.
Notes
- Regular pasteurized cream cultures more reliably than ultra-pasteurized.
- Let culture closer to 24 hours for a tangier flavor.
- Store in the refrigerator for up to 2 weeks.
- Use a clean spoon each time to maintain freshness.
- Crème fraîche is more heat-stable than sour cream and resists curdling in warm dishes.
Nutrition
- Serving Size: 1 tablespoon
- Calories: 52 kcal
- Sugar: 0 g
- Sodium: 5 mg
- Fat: 5.5 g
- Saturated Fat: 3.5 g
- Unsaturated Fat: 1.7 g
- Trans Fat: 0 g
- Carbohydrates: 0.4 g
- Fiber: 0 g
- Protein: 0.3 g
- Cholesterol: 20 mg