Potato Starch (Best Option)
1:1 (use equal amount to cornstarch)Potato starch is a fine, white powder that acts as an excellent binder and thickener similar to cornstarch. It gelatinizes at a slightly lower temperature, helping meatballs retain moisture and hold their shape during cooking.
To use potato starch effectively, mix it thoroughly with the meat mixture to ensure even distribution. Avoid overmixing the meat to prevent toughness. Potato starch performs best when added directly to the meat mixture before shaping.
Compared to cornstarch, potato starch yields a similarly tender and cohesive meatball without imparting any off-flavors or heaviness, making it an ideal one-to-one substitute.