There may be some killer vanilla extracts on the market these days, but there’s still no liquid elixir that can touch the potent, sweet essence of a whole vanilla bean. You want to seek out plump, supple beans that bend easily without snapping. They should have a strong scent that carries a natural sweetness with it. Using them in your recipes is simple: Slit one bean lengthwise with a sharp knife and scrape out the tiny seeds within. Add those seeds to your mixture, and be thorough to extract every bit of bean you can.