Lemon Juice (Best Option)
1 tablespoon lemon juice per 1 tablespoon white vinegarLemon juice works well because it contains citric acid, which provides the acidity needed to break down proteins in the meat, improving tenderness and flavor absorption. The fresh citrus flavor complements the herbs and spices typically found in meatballs without overpowering them.
When using lemon juice, ensure to balance the other seasonings slightly, as the citrus can brighten the overall flavor. Avoid using excessive amounts to prevent the meat from becoming too tangy or slightly cooked by the acid.
Compared to white vinegar, lemon juice yields a slightly fresher and more aromatic profile, which can enhance the overall taste of the meatballs while preserving the essential acidity needed for texture and flavor balance.