01 - In a large mixing bowl, whisk together the balsamic vinegar, olive oil, minced garlic, chopped parsley, thyme, black pepper, and sea salt until well combined.
02 - Add the cleaned mushrooms to the marinade and toss thoroughly to ensure even coating. Cover the bowl and let them marinate at room temperature for 20 to 30 minutes, or refrigerate for up to 2 hours for deeper flavor penetration.
03 - Preheat an outdoor grill or grill pan to medium-high heat, ensuring the grates are clean and lightly oiled to prevent sticking.
04 - Thread the marinated mushrooms onto skewers, packing them snugly while leaving a small gap between each mushroom for even cooking.
05 - Place the skewers on the preheated grill and cook for 8 to 10 minutes, turning occasionally with tongs until the mushrooms are tender and lightly charred. Baste with any remaining marinade during grilling for additional flavor if desired.
06 - Transfer the grilled skewers to a serving platter. Garnish with additional chopped parsley and a light drizzle of balsamic glaze. Serve immediately while hot.