Jul 14 2026
RestaurantsCornish Pasty CoBalsamic Portobello Recipe

Balsamic Portobello Recipe

Inspired by Cornish Pasty Co
Time1h
Serves4

Make Balsamic Portobello Recipe in just 1h . Get the full recipe with step-by-step instructions at pekinthechef.com.

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Ingredients

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Marinated Portobello Mushrooms

Method

Marinated Portobello Mushrooms

  1. 1

    Clean and Prep

    Wipe each portobello cap with a damp paper towel to remove dirt. Trim the stem flush with the cap if present. If you prefer, gently scrape out the gills with a spoon for a cleaner presentation and less earthiness.

  2. 2

    Make the Marinade

    In a shallow bowl or medium mixing bowl, whisk together 3 tbs olive oil, 3 tbs balsamic vinegar, 1.5 tbs soy sauce, 1 tsp Dijon mustard, 3 minced garlic cloves, 1 tbs fresh thyme leaves (or 1/2 tsp dried), 1 tsp brown sugar (or maple syrup), 1 tsp salt and 1 tsp freshly ground black pepper until emulsified.

  3. 3

    Marinate

    Place the mushroom caps gill-side up in the bowl or in a large resealable plastic bag. Pour the marinade over the mushrooms, turning to coat both sides. Reserve about 1 tbs of the marinade for basting later. Cover and refrigerate at least 30 minutes and up to 2 hours. If you are short on time, marinate 15 minutes at room temperature.

  4. 4

    Bring to Room Temperature

    About 15 minutes before cooking, remove mushrooms from the fridge to come to room temperature so they cook evenly.

  5. 5

    Cook — Grill or Pan-Sear

    Option A — Grill: Preheat grill to medium-high (about 400°F/200°C). Oil the grates lightly. Place mushrooms gill-side down and grill 4–6 minutes. Flip, brush with reserved marinade and grill another 3–5 minutes until tender and slightly charred. Option B — Pan-Sear: Heat a large skillet over medium-high heat and add 1 tbs olive oil. When shimmering, place mushrooms gill-side down and sear 4–6 minutes until browned. Flip, brush with reserved marinade and cook another 3–5 minutes until tender. Total cooked time depends on thickness; mushrooms are done when they are tender and juices run but not soggy.

  6. 6

    Finish

    If using butter or soft goat cheese, place 1/2 tbs on each hot mushroom cap immediately after removing from heat so it melts into the surface. Let rest 2 minutes.

Serve & Garnish

  1. 7

    Arrange mushrooms on a platter or on top of toasted crusty bread or cooked grains. Drizzle with 2 tbs balsamic reduction if using and sprinkle chopped fresh parsley over the top.

  2. 8

    Serve warm as an appetizer, vegetarian main (with grains or salad), or as a sandwich component. Leftover mushrooms refrigerate in an airtight container up to 3 days and reheat gently in a skillet or oven.

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