Milk + Lemon Juice or Vinegar (Best Option)
1 cup milk + 1 tablespoon lemon juice or white vinegarThis substitute works because the acid in lemon juice or vinegar curdles the milk, creating a similar pH and acidity level to buttermilk. The acidity helps activate baking soda or yeast, improving dough rise and tenderness. The milk provides the necessary moisture and fat content to maintain dough elasticity.
For best results, use whole or 2% milk and allow the acid to fully curdle the milk before mixing into the dough. Avoid using skim milk as it lacks fat, which can affect texture. Mix gently to avoid overworking the dough.
Compared to buttermilk, this substitute produces a very similar dough texture and rise, with only minor differences in flavor that are generally undetectable in the finished pizza crust.