Wood butter/spoon oil is used on wood cutting boards, wooden spoons, rolling pins, etc to moisturize and bring back the wood. Wood isn't supposed to be washed but I'd bet most of us do it. Follow the link below and the recipe is included.
http://www.creative-culinary.com/wood-butter-helps-renew-wood-utensils-and-bowls
At only two ingredients it's definitely worth a shot!
(Just wanted to add-anyone think I should cross post this in a cooking group?)