|Heavy cream||1 Pint|
Our cream into a jar.
Stir in buttermilk.
Leave in warm place, such as on top of the stove, until cream thickens like yogurt.
This can take as little as twenty four hours or as long as four days.
Store in refrigerator for up to two or three weeks.
Do not use ultrapasteurized cream.
It will not work.