โญ Plain Kefir (Best Dairy-Free Option)
1 cup plain kefirKefir contains lactic acid bacteria similar to buttermilk, which helps tenderize meat proteins and activate leavening agents. Its thinner consistency compared to yogurt helps maintain the right moisture balance in meatballs.
Use plain, unsweetened kefir to avoid altering the flavor profile. Because kefir is fermented, it adds a mild tang that complements the meat.
Meatballs made with kefir will be tender and moist with a slightly tangy flavor, closely resembling those made with buttermilk.