My Favorite Dinner Party - marcuslink - Glenn & Karen Marcus

Ingredients

• 1 egg yolk
• 1 sheet frozen puff-pastry (8 oz.), thawed
• 1/4 cup oil-packed sun-dried tomatoes, chopped fine
• 1/2 cup grated Fontina (4 oz.)
• 4 thin slices prosciutto (2 oz), cut into thin strips
• 2 to 3 tablespoons freshly grated Parmigiana-Reggiano