Beef and Guinness Pot Pie – Fustini's Oils & Vinegars

Ingredients

• 1 lb beef chuck, cut into bite-size pieces
• 1 tablespoon all-purpose flour
• Kosher salt and fresh ground pepper
• 1 tablespoon Fustini's Herbs de Provence olive oil
• 1/2 cup celery, chopped
• 1/2 cup onion, chopped
• 1/2 cup carrot, chopped
• 2 garlic cloves, minced
• 2 tablespoons Fustini's Thyme balsamic
• 1 tablespoon tomato paste
• 1/2 cup beef broth
• 1/2 cup Guinness
• 1/2 tablespoon Worcestershire sauce
• 1/2 teaspoon thyme
• 1/4 teaspoon red pepper flakes (optional)
• 1/2 sheet puff pastry
• 1 large egg