Hello Sanjay! 

There are various ways of making onion soup. Before discussing the easy and quick way of making restaurant-style onion soup at home, let's know the ingredients that can be added to give a lip-smacking taste to your onion soup.

Ingredients play a major role when making soups. When we use ingredients in exact quantity and cook it for the exact time, you will surely enjoy restaurant-style onion soup at home

When an onion soup is made with sherry and red wine with the flavor of the broth, the hunger strike at its peak. The taste of your favorite mayos and cheese will double its flavor. When garnishing it with dried thyme and fresh coriander it gives a perfect feel of enjoying restaurant-style onion soup at home.

Hi Sanjay!
Onion soup is a simple peasant dish. As you want to make it at home, here I can help you to make it in an easy way.

Have a look at the ingredients:-

(if you want to make soup of 5-7 onions) you need- 4 tablespoons of butter, with two quarts of organic broth(the one you like the most), a cup red wine, with ½ cup of sherry wine,2 teaspoons of dried thyme, 1-2 bay leaf,2-3 clove of garlic, 1-2 tablespoon of all-purpose flour. bread, toast, 1 teaspoon of sugar, salt, and pepper to taste.

Here’s the recipe:-

• Melt the butter in a deep pan. Add the finely chopped onion with a tablespoon of salt and sugar with some pinches of pepper.
• Cook till onions get golden brown.
• As the onion starts to caramelize, sprinkle all-purpose flour over onions till it gets mixed. Add red wine, sherry wine, thyme, garlic cloves, and bay leaves to the pot and bring to simmer for about 30 -40minutes.
• If the soup needs a deeper flavor, add on some flavored soup of your choice.
• While the soup is getting ready, bake the bread in an oven till it becomes crispy. It takes 10 minutes to get the bread crispy.
• Take out the soup in a bowl.
• Place toasted bread over each bowl of soup. Sprinkle cheese all over it.
• Your restaurant style onion soup is ready to serve.