1 Prep
Cut off the stems of the portobello mushrooms and gently wipe the caps clean using a dry paper towel.
2 Marinate
Whisk together soy sauce, garlic, balsamic vinegar, and parsley. Add the mushrooms and let them marinate for 10–15 minutes.
3 Cook
Heat a well-oiled pan and add the mushrooms along with the marinade. Use a brush to evenly coat the caps, allowing the marinade to caramelise. Cook for 4–5 minutes per side, flipping once.
4 Serve