I made some General Tso's Chicken last night using a batter of potato starch and water then frying in peanut oil. I used just enough water to wet the starch and make it somewhat pliable but if I let it sit for a minute it was so thick but if I gave it a bit of stir I could coat the chicken.
My question is, what is a good water to potato or corn starch ratio to be able to coat the chicken easily and give it that amazingly crisp coating even after tossing with the sauce? The type of coating I'm after is light and crispy, not doughy.