Name: French Onion Soup
Prep time: 15 min
Cook time: 80 min
Yield: 4
Ingredients: 3 tbsp unsalted butter; 3 lbs red and/or yellow onions; 3/4 tsp kosher salt (more to taste); 8 cups beef stock; 1 cup dry white wine; 1 tbsp dry sherry; 1 tbsp all-purpose flour; 1/2 tsp black pepper (more to taste); 1 loaf French Bread cut into 8-12 1/2-inch slices; 1 1/2 cups grated Gruyere Cheese