Barbecued Basil Portobello Burgers

    Barbecued Basil Portobello Burgers

    5saves
    20min


    89 people made this

    A great take on the vegetarian hamburger using portobello mushrooms. I like to serve this with barbecued veggies and a glass of white wine!

    Ingredients
    Serves: 6 

    • 1/3 cup (85ml) balsamic vinegar
    • 1/4 cup (65ml) olive oil
    • 1 tablespoon minced garlic
    • 6 portobello mushroom caps
    • 1/2 cup mayonnaise
    • 1 tablespoon Dijon mustard
    • 1 teaspoon lemon juice
    • 2 tablespoons chopped fresh basil
    • 6 round bread rolls, split, toasted
    • 1 tablespoon butter
    • 6 leaves lettuce
    • 6 tomato slices

    Directions
    Preparation:10min  ›  Cook:10min  ›  Ready in:20min 

    1. Preheat the barbecue for medium heat and lightly oil the grate. Whisk together the balsamic vinegar, olive oil and garlic in a small bowl.
    2. Arrange the portobello mushrooms gill-side up on a baking tray. Brush the mushrooms with some of the vinegar mixture and allow to marinate for 3 to 5 minutes.
    3. Place the marinated mushrooms on the preheated barbecue gill-side down. Cook mushrooms until tender while brushing both sides of the mushrooms with the remaining marinade, about 4 minutes on each side.
    4. Mix the mayonnaise, Dijon mustard, lemon juice and basil in a small bowl. Butter the toasted rolls then spread with the mayonnaise mixture. Divide the mushrooms, lettuce and tomato slices evenly to make 6 sandwiches.

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