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In a clean, non-reactive bowl (glass or ceramic works best), combine the heavy cream and buttermilk. Whisk gently until just combined.

Stir in the finely grated lemon zest, fresh lemon juice, and fine sea salt. Mix well to ensure all ingredients are evenly distributed.

Cover the bowl loosely with plastic wrap or a clean kitchen towel. This allows air circulation while preventing contaminants.

Let the mixture stand at room temperature (ideally between 68-72°F or 20-22°C) for 4 to 6 hours, or until it has thickened to the consistency of sour cream. The exact time will depend on the ambient temperature. Do not stir during this period.

Once thickened, stir the crème fraîche gently. Transfer it to an airtight container and refrigerate for at least 1 hour before serving to allow the flavors to meld and for it to chill thoroughly.


In a clean, non-reactive bowl (glass or ceramic works best), combine the heavy cream and buttermilk. Whisk gently until just combined.

Stir in the finely grated lemon zest, fresh lemon juice, and fine sea salt. Mix well to ensure all ingredients are evenly distributed.

Cover the bowl loosely with plastic wrap or a clean kitchen towel. This allows air circulation while preventing contaminants.

Let the mixture stand at room temperature (ideally between 68-72°F or 20-22°C) for 4 to 6 hours, or until it has thickened to the consistency of sour cream. The exact time will depend on the ambient temperature. Do not stir during this period.

Once thickened, stir the crème fraîche gently. Transfer it to an airtight container and refrigerate for at least 1 hour before serving to allow the flavors to meld and for it to chill thoroughly.
