Chicken Marsala en Croute Recipe: How to Make It

Ingredients

• 3 tablespoons butter
• 1/2 pound sliced baby portobello mushrooms
• 2 shallots, finely chopped
• 3 garlic cloves, minced
• 1 tablespoon all-purpose flour
• 1/4 cup beef broth
• 2/3 cup Marsala wine
• 4 boneless skinless chicken breast halves (5 ounces each)
• 1 tablespoon large egg
• 1 tablespoon water
• 1 sheet frozen puff pastry, thawed
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• Fresh thyme, optional