What you need for Authentic Buffalo wings is very simple. Franks Hot Sauce and Butter. Melt half a stick of butter over a saucepan and add franks hot sauce (no other hot sauce will work)so that you have a creamy but hot saucy mixture. I couldn’t say specificly how much butter or how much hot sauce, but it should all be about taste and your own preferences.
You can marinate it before you grill, (but mind you, the sauce needs to stay warm otherwise it will congeal) and then place the chicken on the grill, marinating as you as it cook it.