Zucchini and a steak may not have much in common, but, like steak, zucchini takes incredibly well to the method of quickly searing in a smoking hot pan. Zucchini has high water content, so cooking it fast means it retains its structure and doesn't release too much water, and doing so over high heat yields a beautiful char. A quick baste with brown butter, rosemary and garlic add an even more steakhouse-like flavor. The recipe calls for 1 tablespoons butter, but feel free to use a bit more if you like. Finally, choose smaller zucchini if you can; they tend to be less watery, more flavorful, and contain smaller seeds than their larger counterparts. If you can only find larger zucchini (or if you only have a 10-inch skillet), use two zucchini instead of three to avoid crowding the pan