Soy Marinated Mushrooms

Soy marinated mushrooms are the kind of cold appetizer that disappears off a party platter without anyone noticing they ate twelve. The marinade is a quick boil of soy sauce, red wine vinegar, sherry, sugar, and finely minced onion, poured hot over cleaned mushrooms and chilled overnight.

The hot-pour technique matters. Boiling the marinade and pouring it over raw mushrooms partially cooks the exterior while keeping the interior firm. The mushrooms drink up the flavors deeply over the 24-hour chill without going soggy or losing structure.

The sugar-vinegar-soy combination is a classic Chinese-influenced sweet-and-sour profile. Sugar balances the strong acidity of the vinegar and the saltiness of the soy. Remove any one of those three and the marinade collapses into something less interesting.

Use small button or cremini mushrooms whole, or halve or quarter larger ones to match. Uniform size means each mushroom marinates at the same rate.

Pro Tips

• Clean mushrooms by wiping with a damp paper towel, not rinsing under water. Mushrooms are sponges and washing waterlogs them.
• Use a glass or non-reactive container for marinating. Aluminum reacts with the acid and gives a metallic taint.
• Stir or shake the container a few times during the 24-hour chill to redistribute the marinade.
• Serve with toothpicks for easy grabbing, or pile on crostini for a more substantial appetizer.

Variations

• Add 2 cloves of crushed garlic to the marinade for sharper aromatic depth.
• Stir in a teaspoon of toasted sesame oil at the end for a nuttier finish.
• Use tamari instead of soy sauce for a gluten-free version.