What else can you use for buttermilk?

* Sour cream: Sour cream is a great substitute for buttermilk in recipes that call for milk. It adds a similar amount of acidity and thickness, and it has a similar flavor.

* Plain Greek yogurt: Greek yogurt is another good substitute for buttermilk. It is more tangy than sour cream, but it can still be used in most recipes that call for buttermilk.

* Kefir: Kefir is a fermented milk drink that is made from kefir grains. It is similar to yogurt, but it has a thinner consistency and a more tart flavor. Kefir can be used in most recipes that call for buttermilk.

* Kombucha: Kombucha is a fermented tea drink that is made with black tea, sugar, and a SCOBY (symbiotic culture of bacteria and yeast). Kombucha has a slightly sweet and tart flavor, and it can be used in most recipes that call for buttermilk.

* Buttermilk powder: Buttermilk powder is a dried version of buttermilk. It can be used to make buttermilk by mixing it with water. Buttermilk powder can be found in most grocery stores.