Food Guy Jon Jackson poses an observation and a question. "There's a certain period in the spring when you think, 'Is this a period of starvation?' Well, historically, it was. Everything is greening up, yet it's a period of scarcity for food, because plants aren't readily available. We have markets today, so we don't think about that so much. But if you're a cook, you're thinking, "What's coming on? It's springtime and I need something."