Ingredients for - Chef John's Crème Fraîche

1. Heavy cream 2 cups
2. Cultured buttermilk 3 tablespoons

How to cook deliciously - Chef John's Crème Fraîche

1 . Stage

Combine cream and buttermilk in a glass jar. Cover tightly with cheesecloth (or any breathable material) and let sit at room temperature (70 to 75 degrees F (21 to 24 degrees C)) until thickened, about 24 hours.

2 . Stage

Stir mixture, then screw on the lid. Refrigerate for 24 hours before using. Chef John