French Onion Soup

Ingredients

• 3 tbsp unsalted butter
• 1 tbsp extra-virgin olive oil
• 3 lbs medium yellow onions ((about 5), thinly sliced)
• 1 tsp granulated sugar
• 1 tsp salt
• 1 tbsp all-purpose flour
• 8 cups beef stock ((preferably homemade))
• 2 cups local dry red wine
• salt and freshly cracked black pepper
• 2 cups cubed baguette (toasted)
• 4 1/2 cups Gruyère cheese ((about 1 lb), shredded)
• 2 tsp fresh thyme (minced)