2.

When ready to proceed, adjust oven rack to center position and preheat oven to 350°F. Remove mushroom caps from bag and wipe off excess marinade with paper towels. Place on a foil-lined rimmed baking sheet gill-side-down and roast until top surface is dry and mushroom is tender throughout, about 30 minutes. Transfer to a cutting board and let rest 5 minutes to cool slightly.