DG Culinary Adventures! Grilled Portobello Burger

Add your voice to Discovery Girls!

Log in or create an account to get access to comments and more on our site. See something on our blog that sparks inspiration? Add a comment and discuss with your fellow Discovery Girls!

Serves 4


  • 4 large Portobello mushroom caps, about 5 inches in diameter
  • 1/3 cup balsamic vinegar
  • 1/2 cup water
  • 1 tablespoon sugar
  • 1 garlic clove, minced or garlic powder to taste
  • 1/4 teaspoon cayenne pepper, optional
  • 2 tablespoons olive oil
  • 4 buns, toasted
  • Cheese optional (suggestions, American, Blue crumbled my favorite, swiss or cheese of your choice)

Optional toppings

  • 4 slices tomato
  • 4 slices red onion
  • lettuce leaves for topping


  1. Clean mushrooms with a damp cloth and remove their stems.
  2. Place in a glass dish, stem (gill) side up.
  3. Prepare the marinade, in a small bowl whisk together the vinegar, water, sugar, garlic, cayenne pepper and olive oil. Drizzle the marinade over the mushrooms.
  4. Cover and marinate in the refrigerator for about 1 hour, turning mushrooms once.
  5. Ask an adult to either cook the burgers for you or if OK to prepare a hot fire in a charcoal grill or heat a gas grill or broiler.
  6. Grill or broil the mushrooms on medium heat, turning often, until tender, about 5 minutes on each side.
  7. Baste with marinade to keep from drying out. Add the cheese of your choice and using tongs, transfer the mushrooms to a bun and top with 1 tomato slice, 1 onion slice and 1/2 lettuce leaf.

Serve immediately.