Ingredients

• 1 box puff pastry (2 square sheets)
  
• 5 pounds sweet onions (Vidalia, Walla Walla, etc)
  
• 4 tablespoons butter
  
• 1 teaspoon salt
  
• 1 teaspoon sugar
  
• 10-20 sprigs thyme
  
• 4-6 ounces sliced (thick or thin) proscuitto
  
• 6-12 ounces goat cheese
  
• black pepper