Turn the Instant Pot on and select the "Saute" function.
Add the butter.
Once the butter has melted, add the onions and saute and stir for 15 minutes, or until the onions are transluscent.
Add garlic, brown sugar, salt, and pepper.
Stir and saute for 10 minutes. The onions should be turning brown. Be sure to stir the onions every couple of minutes so that they do not burn to the bottom of the pot.
Pour in the wine, and stir for 2 minutes to cook off most of the alcohol.
Pour in the beef broth, Worcestershire sauce, thyme, and bay leaf, and stir.
Turn the saute function off and put on the pressure cooking lid.
Choose the "Pressure Cook" function. Pressure cook on high for 5 minutes and then move the pressure release valve and quick release the remaining pressure.
When the pressure cooking time is over, delay the pressure release by 5 minutes and then release the remaining pressure. Open the lid and remove the bay leaf.
Toast the baguette slices.
Serve the soup in a bowl and top with toasted baguette slices.
Video
Notes
What's the difference between French Onions Soup and regular onion soup?French Onions Soup is made using caramelized onions, beef broth, thyme, bay leaves, and wine. Regular onion soup can be made with vegetable or chicken broth, additional vegetables, and a variety of onions. Also, most regular onion soup is not served with bread and cheese on top.How do you melt cheese on top of French Onion soup?To melt the cheese on top of the French Onion soup: -Place the cheese on top of the very hot soup and it will start to melt on its own. -If the soup is not hot enough to melt the cheese, you can place the soup in a microwave-safe bowl and microwave on high for 15-30 seconds until the cheese has melted. -If the soup is not hot enough to melt the cheese, you can place the soup in an oven-safe bowl on a baking sheet and place it in the oven on broil for about a minute or you can place the bowl of soup into the Instant Pot on the metal rack and use the crisping lid to broil the cheese until it's nice and melted.What makes French Onion soup French?French Onion soup was first created in France....so it's actually French! It was first made in Paris during the 18th Century using simple ingredients. Over the years, it's gotten fancier and can now be found on the menu at famous steakhouses all across the world!