French Onion Soup | JoenDeb Recipes | Umami

Ingredients

• 3 tablespoons Butter
• 1/2 tablespoons Olive Oil
• 2 Lbs Yellow Onion (3 onions) Thinly Sliced
• 1/2 teaspoon Sugar
• 1/4 teaspoon Salt
• 1/8 teaspoon Pepper
• 2 tablespoons All Purpose Flour
• 6 cups Beef Stock
• 1 Bay Leaf
• 8 slices Baguette, Thinly Sliced
• 4oz Gruyere Cheese, Grated
• 1/4 cup Parmesan Cheese, Grated