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Grilled Portobello Mushrooms with Smoky Herb Marinade

This dish features large, firm Portobello mushroom caps marinated in a smoky, herb-infused oil and grilled to perfection. The mushrooms develop a tender yet slightly chewy texture with a charred, flavorful exterior, making for a hearty and visually appealing main course. The process involves cleaning, marinating, and grilling, resulting in a savory, earthy dish with a smoky aroma.
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Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 4
Course: Main Course
Cuisine: Grilling
Calories: 150
Ingredients Equipment Method Notes

Ingredients
  

  • 4 large Portobello mushrooms firm, meaty caps with dark gills
  • 2 tablespoons olive oil for brushing and marinating
  • 1 teaspoon coarse sea salt for seasoning
  • ½ teaspoon freshly ground black pepper adds smoky aroma
  • 1 tablespoon balsamic vinegar brightens umami flavor
  • 2 cloves garlic minced, optional
  • 2 sprigs fresh thyme or rosemary for aromatic flavor

Equipment

  • Grill
  • Brush

Method
 

  1. Begin by gently cleaning each mushroom cap with a damp cloth or a soft brush to remove any dirt. Carefully scrape out the gills with a teaspoon to prevent earthy bitterness, ensuring the caps are firm and dry.
  2. In a small bowl, whisk together the olive oil, balsamic vinegar, minced garlic (if using), salt, pepper, and chopped herbs to create a flavorful marinade.
  3. Using a brush or your hands, coat each mushroom cap generously with the marinade, making sure the surface feels slick and shiny. Let them sit for 10-15 minutes to absorb the flavors.
  4. Preheat your grill until it sizzles when the mushrooms are placed on it—this ensures a good sear and prevents sticking.
  5. Use a brush to lightly oil the grill grates or the mushroom caps directly to prevent sticking. Place the mushrooms gill side down first, listening for a faint crackling sound that indicates the grill is hot enough.
  6. Grill the mushrooms for about 4-5 minutes on each side, turning once, until they are tender and have visible grill marks. Adjust the heat if edges begin to blacken too quickly.
  7. Once cooked through, remove the mushrooms from the grill and let them rest for a minute. Their exterior should be charred slightly, with a juicy, tender interior ready to serve.
  8. Serve the grilled Portobello mushrooms hot, drizzled with any remaining marinade or fresh herbs if desired. Their smoky aroma and meaty texture make for a satisfying main dish or hearty side.

Notes

For an extra smoky flavor, add wood chips to your grill. Always preheat thoroughly to ensure mushrooms don't stick and develop nice grill marks. You can prepare and marinate the mushrooms a day ahead for even deeper flavor.