Restaurants pump up spirits with infused concoctions

A "do it yourself" trend is raging in the cocktail world, and it's all about flavor.

The proof is in the prevalence of house-made spirit infusions at the bar and the creative cocktails that they inspire.

Note the Madagascar vanilla bean house-infused Rain vodka starring in a drink called the Flying Fig at Uncommon Ground in Chicago, which also contains orange liqueur, honey liqueur, star anise, mission fig, ginger, cardamom, and medjool date. The drink list