Buttermilk (Best Option)
1 cup buttermilk per 1 cup whole milkButtermilk is acidic and contains fat, similar to whole milk, which helps break down proteins in the chicken, making it more tender and juicy. The acidity also promotes better adhesion of the flour coating, resulting in a crispier crust.
For best results, marinate the chicken in buttermilk for at least 1 hour or overnight. Watch for slight tanginess in flavor, which is desirable in classic fried chicken recipes.
Compared to whole milk, buttermilk enhances tenderness and crust texture, giving fried chicken a more traditional Southern profile with a slightly tangy note that complements the seasoning.