Cookwith - King Oyster Mushroom “Filet Mignon” with Charred Scallion Béarnaise (Vegetarian, Gluten-F

Ingredients

• 4 large king oyster mushrooms (stems at least 1" thick)
• 2 tbsp high-heat oil (avocado or grapeseed)
• 1/2 tsp kosher salt, plus more to taste
• Freshly ground black pepper
• 2 tbsp unsalted butter
• 1 shallot, finely minced
• 1 small bunch scallions, trimmed
• 2 tbsp white wine vinegar
• 2 tsp fresh tarragon, finely chopped
• 2 egg yolks
• 2 tbsp lemon juice
• 1/2 cup unsalted butter, melted (for sauce)
• 1/2 tsp Dijon mustard (gluten-free)
• Fresh chives, finely chopped, for garnish
• Microgreens and roasted baby potatoes, to serve (optional)