Rhubarb. I have loved it for years. And why not? It's a tart, refreshing, and completely extraordinary thing when handled properly. Of course, it is also highly seasonal. It's one of the first bits of produce to show up in markets when the ground warms up in the spring, it hangs around in the summertime, when the living is supposedly easy, but it has a predictable habit of disappearing when the weather gets rough. It's a fair weather thing. And, though most commonly lumped together with fruits, it is, in fact a vegetable-- a truth I've found very difficult to grasp over the past few years.