Marco Wiles's latest Italian eatery is linger-worthy. The darkened dining room and menu of small plates feel perfectly authentic, despite the fact that Westheimer in all of its local color is whizzing by outside. Poscol does many things right, but its risottos are the best of all, creamy and decadent without being heavy, simple to look at but complex at first bite. Both the valpolicella (made with red wine) and butternut squash (topped with fried chicken livers) will make you consider licking the plate.