ACE Bakery French Onion Soup Bites

Ingredients

• 1 ACE Bakery® White Baguette
• 1/4 cup butter
• 4 large cooking onions, thinly sliced
• 1/2 tsp. each salt and fresh cracked pepper
• 1 tsp. dry mustard powder
• 1/4 cup dry white wine, or sherry or water
• 1 cup grated Gruyere cheese
• 2 tbsp. fresh chopped chives