Get your mixology on with one of Top Chef alum and Chicago restaurateur Fabio Viviani's favorite cocktail recipes from Bar Siena, Siena Tavern and Prime & Provisions! Fabio Viviani knows good cocktails. (If you've been to one of his restaurants in Chicago, you already know this.) So it's no surprise that when he's looking for a good drink, he keeps it close to home. "I go to The Aviary once in a while, but [my favorite] has to be Bar Siena and Siena Tavern for cocktails," Viviani says. …