Easiest Way to Make Ultimate French Onion Soup

French Onion Soup.

You can have French Onion Soup using 10 ingredients and 10 steps. Here is how you cook it.

Ingredients of French Onion Soup

1. You need 4 Tbsp of butter.
2. It's 4 Tbsp of olive oil.
3. Prepare 7 cups of sliced onions (about 7 medium onions).
4. It's 3 Tbsp of flour.
5. You need 8 cups of beef broth (I use 8 cups water and 8 packets beef bovril).
6. You need 1 clove of garlic sliced.
7. Prepare 1 tsp of sugar.
8. Prepare 1 cup of dry white wine.
9. It's 1 stick of French bread sliced into 1/2 or 3/4 inch thick pieces.
10. It's of Swiss gruyere or mozzarella cheese (thinly sliced or grated).

French Onion Soup instructions

1. Melt butter in large sauce pan then add 2 Tbsp olive oil..
2. Stir in onions, garlic and sugar..
3. Cook uncovered over low to medium heat, stirring occasionally for 20 to 30 minutes or until onions are golden brown..
4. Sprinkle flour over onions and cook for another 1 or 2 minutes, stirring constantly..
5. Add beef stock and wine and bring to a boil. Reduce heat and simmer, partially covered for another 30 to 40 minutes..
6. While the soup simmers, prepare the bread..
7. Brush bread slices lightly with remaining olive oil on both sides and put on pan in 350 degree oven. Lightly toast each side (turn part way)..
8. Ladle soup into individual oven proof bowls and top with 2 or 3 slices of French bread followed by the cheese..
9. Put oven proof bowls on a baking pan and bake in 350 degree for 10 to 20 minutes until cheese is melted..
10. Enjoy!.