Grilled Balsamic Herb Portobello Steaks

Grilled Balsamic Herb Portobello Steaks

Juicy, meaty portobello mushrooms marinated in a robust blend of balsamic vinegar, garlic, and fresh herbs, then grilled to tender perfection. They develop a savory char and rich umami depth, making them excellent hot off the grill or served room temperature at a picnic.

35mEasy4 steaks

Equipment

Outdoor grill or grill pan
Small mixing bowl
Pastry brush*
Tongs

* optional

Ingredients

4 servings

Mushrooms

  • 4 large portobello mushroom caps, stems removed, wiped clean

Marinade

  • 60 ml olive oil
  • 45 ml balsamic vinegar
  • 2 garlic, minced
  • 5 g fresh rosemary or thyme, finely chopped
  • 3 g salt
  • 1 g black pepper, freshly cracked

Nutrition (per serving)

168
Calories
2g
Protein
6g
Carbs
15g
Fat
1g
Fiber
4g
Sugar
303mg
Sodium

Method

01

Gently remove the stems from the mushrooms. Using a spoon, carefully scrape out the black gills from the underside of the caps to prevent them from muddying the flavor and appearance.

02

In a small bowl, whisk together olive oil, balsamic vinegar, minced garlic, chopped herbs, salt, and pepper until emulsified.

03

Brush the marinade generously over both sides of the mushroom caps. Let them sit at room temperature for 20 minutes to absorb the flavors.

20m
04

Preheat your grill or grill pan to medium-high heat (approximately 200°C/400°F).

05

Place mushrooms on the grill, smooth cap side down first. Grill for 4-5 minutes until char marks appear.

5mLook for: Distinct grill marks
06

Flip the mushrooms and grill for another 3-4 minutes until tender and juicy.

4mFeel: Tender when pierced with a fork
07

Remove from grill and let rest for 2-3 minutes before serving or packing for a picnic.

2m

Chef's Notes

  • Scraping the gills (the black ribs inside) is optional but recommended for a cleaner look and better texture, especially for picnics.
  • These have a 'meaty' texture that makes them an excellent patty replacement in burger buns.
  • For a picnic, these can be sliced beforehand and served cold on top of a grain salad or in a wrap.
  • If using a grill pan indoors, ensure your ventilation fan is on, as the balsamic can smoke slightly.

Storage

Refrigerator: 3 daysStore in an airtight container. Excellent served cold or reheated.

Reheating: Warm gently in a pan over medium heat or eat cold.

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