Balsamic portobello mushroom burger

    Balsamic portobello mushroom burger


    90 people made this

    About this recipe: This is a wonderful vegetarian burger, packed full of flavour. Portobello mushrooms are barbecued and served in a burger bun with mayo, basil, lettuce and tomato. Try adding cheese at the end to make them into cheeseburgers.

    Serves: 6 

    • 75ml balsamic vinegar
    • 4 tablespoons olive oil
    • 1 tablespoon finely chopped garlic
    • 6 portabello mushroom caps
    • 125ml mayonnaise
    • 1 tablespoon Dijon mustard
    • 1 teaspoon lemon juice
    • 2 tablespoons chopped fresh basil
    • 6 burger buns, split and toasted
    • 15g butter
    • 6 leaves lettuce
    • 6 tomato slices

    Prep:15min  ›  Cook:10min  ›  Ready in:25min 

    1. Preheat barbecue for medium heat and lightly oil the cooking grate. Whisk together the balsamic vinegar, olive oil and garlic in a small bowl.
    2. Arrange the portabello 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. Grill mushrooms until tender, 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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