Mark Twain once said, “The coldest winter I ever spent was a summer in San Francisco.” It’s true. When most folks are donning their summer dresses, we’re hunkered down in our layers—facing the onshore winds and a fog so thick you can’t see across the street. But come October, we finally get our summer; warranting corner lemonade stands, sleeping with the windows open, and cold desserts—like this chocolate sorbet. While sorbet is often assu