Stuffed Mushrooms with Pecans – Fisher Nuts

Ingredients

• 2 tablespoons extra-virgin olive oil
• 1 yellow onion, finely chopped
• 1 teaspoon kosher salt, divided
• 1/8 teaspoon ground white pepper
• 2 cloves garlic, grated or finely chopped
• 40 large white mushrooms (about 2-1/2 pounds), stemmed
• 1/4 cup dry vermouth or white wine
• 1 cup sour cream
• 1/2 cup grated Parmesan cheese
• 1/2 cup Fisher® Pecan Halves, coarsely chopped
• 1-1/4 cups fresh bread crumbs, toasted
• 1 tablespoon balsamic vinegar or lemon juice