Saffron Milk Cap Mushroom Tart

Ingredients

• 2 Cups Vegetable Stock
• 1 Cup Saffron Milk Cap Mushrooms , picked over
• 1 Small Onion, sliced
• 3 Tablespoons Melted Butter
• 2 Cloves Garlic, minced
• 1/2 Teaspoon Fresh Thyme
• Kosher Sea Salt Flakes
• Ground Black Peppercorns Dustless
• 1 Sheet Puff Pastry, thawed
• 1/4 Cup Gorgonzola Cheese, crumbled