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Flavorful Balsamic Grilled Portobello Mushrooms Easy Herb Marinade Recipe

balsamic grilled portobello mushrooms - featured image

A quick and easy recipe for smoky, tangy grilled portobello mushrooms marinated in a simple balsamic herb blend. Perfect for a satisfying plant-based meal or side dish.

Ingredients

Scale
  • 4 large portobello mushroom caps, cleaned and stems removed
  • 1/3 cup (80 ml) balsamic vinegar
  • 3 tablespoons (45 ml) extra virgin olive oil
  • 3 cloves garlic, minced
  • 1 teaspoon fresh rosemary, finely chopped
  • 1 teaspoon fresh thyme leaves
  • 2 tablespoons fresh parsley, chopped
  • 1 teaspoon salt (fine sea salt preferred)
  • 1/2 teaspoon freshly ground black pepper
  • Optional: pinch of crushed red pepper flakes

Instructions

  1. Gently wipe the portobello caps with a damp cloth to remove dirt. Remove the stems by twisting and pulling them out to create space for marinade absorption. Set aside. (About 5 minutes)
  2. In a medium bowl, whisk together 1/3 cup balsamic vinegar, 3 tablespoons olive oil, minced garlic, chopped rosemary, thyme, parsley, salt, and pepper. If desired, add crushed red pepper flakes. (5 minutes)
  3. Place the cleaned mushrooms in the bowl or transfer marinade to a large zip-top bag. Coat each mushroom evenly with the marinade. Let them soak up the flavors for at least 15 minutes, turning occasionally. (15–20 minutes)
  4. Heat your grill or grill pan to medium-high (around 400°F / 200°C). (5 minutes)
  5. Place mushrooms on the grill, cap-side down first. Grill for about 5-7 minutes, then flip and grill the other side for another 5-7 minutes until juicy and tender with grill marks. Watch carefully to avoid flare-ups. (12–15 minutes)
  6. Remove mushrooms from the grill and let them rest on a plate for 3-5 minutes to redistribute juices. (5 minutes)

Notes

Do not overcrowd the grill to allow proper charring. Marinate mushrooms for 15-30 minutes to avoid sogginess. Use medium-high heat to prevent burning the balsamic. Flip mushrooms gently and only once or twice. Brush extra marinade halfway through grilling for a glossy finish. If marinade burns, move mushrooms to a cooler spot and reduce heat.

Nutrition

Keywords: balsamic grilled portobello mushrooms, herb marinade, vegan grilling recipe, plant-based, gluten-free, easy mushroom recipe, smoky mushrooms