marinated portobello mushroom burgers

Marinated Portobello Mushroom Burgers

Marinated Portobello Mushroom Burgers


  • 4 portobello / large cap mushrooms
  • 3 tablespoons balsamic
  • 2 large or 3 small cloves garlic, crushed
  • 2 tablespoons soy sauce
  • 2 tablespoons olive oil
  • Salt and pepper
  • Optional – A sprinkling of dried italian herbs (or a mix of oregano / rosemary / basil)


  1. Mix all the ingredients together and spoon / brush onto the mushroom caps. Leave them to marinate in a bowl (or lidded tupperware container – you can just shake the box then every now and again to coat in marinade!) for at least a couple of hours. 
  2. When it comes to cooking, you can grill the mushrooms for about 8-9 minutes each side, or cook them in a griddle / frying pan for about 5-7 minutes each side (no need to add any oil!). 
  3. Slice up your buns, top and serve 🙂
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