Cornstarch Substitute

Every cook has been there: you grab the Cornstarch, and the carton is empty. Or a guest mentions they're dairy-free, gluten-free, or vegan, and suddenly your go-to recipe needs a rethink. That's exactly why we built this page — to give you the most reliable Cornstarch substitutes, ranked and tested, so you can keep cooking without a last-minute store run.

Why Cornstarch matters in a recipe: Cornstarch provides thickening (sauces, gravies, pie fillings) and tenderizing (cakes, shortbread). When you're mid-recipe and need to thicken a sauce, or want a gluten-free thickener, you need a substitute that performs the same function — not just something that looks similar.

The golden rule of substitution: Cornstarch thickens at a lower temperature than flour and produces a clearer, glossier finish. Always mix with COLD water first (slurry) — adding it directly to hot liquid creates lumps that won't dissolve.

Below, our top picks — starting with the best all-purpose substitute and working down to specialty options for specific recipes. Each entry includes the exact ratio so there's no guesswork. Bookmark this page — it's the one you'll reach for at 6 PM on a Tuesday when dinner is halfway done and you've just discovered you're missing a key ingredient.