Grilling on a wood plank imparts mild, smoky flavor and keeps food moist thanks to damp smoke from the soaked wood. Planks suited for standard grills are widely available and come in a range of aromatic wood varieties. Alder, with its delicate flavor, pairs well with salmon and other seafood. Cedar, the most aromatic, works best with hearty foods such as chicken and pork. Hickory (think hickory-smoked bacon) loves beef, pork, and anything that can stand up to its strong, smoky aroma. Maple adds sweetness to ham, chicken, and fish. Wood planks can be found in barbecue and gourmet stores, seafood markets, and even your local supercenter.