Onion Soup Gratin – Les sauces Firebarns

Ingredients

• 4 white onions, thinly sliced
• 1 tbsp butter
• 1 oz brandy
• 2 tbsp. black garlic puree
• 2 tbsp. Rhum Chipotle Hot Sauce
• 1 tbsp. flour
• 2 cups beef broth
• 1 cup of dark beer of your choice
• 1 tbsp old-fashioned mustard
• 1 drizzle of maple syrup
• 1 cup grated Gruyere cheese
• 8 croutons of baguette bread
• Salt and pepper to taste
• Chopped chives for serving