Trefethen 2K Cuvee Chardonnay 1997 bottling for Millenium New Years . . . think it's still good?
drink and find out. Likely not wrecked. But drink now! And have a younger backup bottle.
Because we are talking about Napa chard here, you can count on this wine having older flavor characteristics pointing towards sherry and subdued fruit.
So when you're thinking of food pairings, look for recipes that work well with dry, less fruity white wines. Like aged Chablis.