Buttermilk

Ingredients
4 cups any plant milk, preferably homemade
2 tablespoons vegan buttermilk
or
1 packet of buttermilk culture:
(LLL) Lactococcus lactis subsp. lactis
(LLC) Lactococcus lactis subsp. cremoris
(LLD) Lactococcus lactis subsp. biovar diacetylactis
(LMC) Leuconostoc mesenteroides subsp. cremoris

Instructions
Sterilize all equipment in boiling water.
Place plant milk in a saucepan, bring it to a boil, and allow it to cool to 80°F. Mix in buttermilk or buttermilk culture and allow to ferment in a covered container at room temperature for two to three days, or until it ferments to your liking.
Store in the refrigerator, and remember to save some for the next batch.
Enjoy!