Maldon Sea Salt
Buy a tub of Maldon Sea Salt (the tub is critical). Going to someone’s home for dinner is awesome; it’s nice to be treated to a delicious meal, thoughtfully prepared. If you’re hosting, it's also nice to get a thoughtful gift. A bottle of wine or flowers are fine, but this tub is a THANK YOU. First, the product itself is awesome. Second, this will last them at least six months. Third, everyone uses salt - it won’t go to waste. Fourth, wait, do you really need more reasons?