Grilled Portobello and Boursin Burger - Rombauer Vineyards
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Grilled Portobello and Boursin Burger

Portobello Burger

Difficulty:

Easy

Prep Time:

1 hrs 30 mins

Cook Time:

15 mins

Total Time:

1 hrs 45 mins

Pairs well with...

Ingredients

For the Burgers

    • 4 large Portobello mushroom caps, stems removed, gently wiped clean
    • ⅓ cup balsamic vinegar
    • 3 Tbsp extra‑virgin olive oil
    • 2 garlic cloves, minced
    • 1 tsp dried Italian herbs (or mix of oregano, thyme, basil)
    • Kosher salt & black pepper, to taste
    • 4 brioche burger buns

Toppings:

  • 4 oz Boursin Garlic and Herb Cheese (optional)
  • A handful of baby arugula
  • ½ small red onion, thinly sliced
  • Roasted red pepper strips

1Step 1

  • Marinate the mushrooms.
In a shallow dish, whisk together balsamic vinegar, olive oil, garlic, herbs, salt, and pepper. Add mushrooms, cap side down, and flip to coat. Marinate 30-120 minutes in the fridge.

2Step 2

  • Preheat the grill.
Heat to medium-high (400–425°F). Clean and oil the grates.

3Step 3

  • Grill the mushrooms.
Place mushrooms cap side down and cook for 5 minutes. Flip and cook for another 4–5 minutes until tender and charred at the edges. Remove from heat.

4Step 4

  • Toast the buns.
Lightly brush cut side of buns with olive oil and toast directly on the grill until golden.

5Step 5

  • Assemble the burger.
On bottom bun: optional smear of Boursin cheese, grilled mushroom, arugula, red onion, and roasted pepper. Top with bun.

Pairs well with...

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