It's a delicious amber nectar all by itself, but it gets even better when you put a grown-up twist on it. Their Drunken Palmer is a long, tall mix of lemonade, sweet tea, vodka and Southern Comfort that begs for a hot afternoon, a winding wraparound porch and outfits topped off by hats and sport coats (they need not be green).by Meridith Ford, AJC dining critic