Savory Mushroom and Parmesan Palmiers Recipe - (4.4/5)

Ingredients

• Special equipment:
• 1/4 cup olive oil, plus more for brushing
• 1 pound cremini mushrooms, trimmed and thinly sliced (5 cups)
• 3 large shallots, thinly sliced
• 6 large garlic cloves, chopped
• 2 bay leaves
• 1 sprig rosemary
• 2 sprigs thyme
• 3 sprigs tarragon
• 2/3 cup dry white wine
• 1/4 cup Marsala wine
• 6 tablespoons unsalted butter
• 1/2 cup panko (Japanese breadcrumbs) or plain coarse breadcrumbs
• 1/2 cup grated Parmesan (2 ounces)
• 2 teaspoons kosher salt (or to taste)
• 1 1/2 teaspoons freshly ground black pepper
• All-purpose flour, for rolling
• 12 ounces all-butter puff pastry, frozen and thawed
• Flaky sea salt, for sprinkling (optional)
• Two large rimmed baking sheets; parchment paper