In a clean jar, mix the cream with the yogurt until smooth and thoroughly combined.
1 pint raw heavy cream, 3 tablespoons whole milk yogurt
Cover loosely and let it sit at room temperature for 12-24 hours until well set. Check for consistency and if it has thickened to your liking, seal it and transfer it ot the refrigerator.
Notes
Storage: Store homemade sour cream in an airtight container like a weck jar in the fridge for up to 10 days. It will continue to thicken and culture over time as it sits in the fridge.Helpful Tips:
Bring to room temperature - Let your cream and yogurt come to room temperature before mixing. This helps the cultures activate more easily and makes for smoother mixing.
Use the right temperature - Let it sit at room temperature (ideally 70–75°F (21–24°C)) for up to 24 hours to thicken and culture properly.
Consistency check - If you find your homemade sour cream is too thick, just add a tiny splash of whole milk to loosen it up to your desired consistency.
The information shown above is an estimate provided for your convenience by an online calculator. It should not be considered as a substitute for a professional nutritionist's advice. Please see our complete Nutritional Information Disclaimer.