Few things are as controversial as the chocolate milkshake, and few beverages have such outspoken partisans. Approximately half of all devotees believe the shake should be made with vanilla ice cream and some kind of chocolate sauce, which makes for a creamy drink with chocolatey overtones. This is incorrect. The fact is, more chocolate is better chocolate, and the double chocolate milkshake at Kilwin's is perhaps the greatest proof of this truism the world has ever seen. Kilwin's super-rich chocolate ice cream plus whatever syrup they're using equals a milkshake so powerful it's almost invasive: the salivary glands start freaking out when the stuff is only halfway up the straw, there's a feeling of heat at the back of your head, and every nerve in your body begins twitching as though in expectation of some explosive sexual climax. And then the flavor hits. And the world melts away, leaving you adrift in a sea of cocoa goodness.