Instant Pot French Onion Soup is a restaurant quality soup, easily and comfortingly made at home. It is loaded with caramelized onions, beef broth, and topped with Gruyere cheese, for the perfect finish!
Turn on the Instant Pot and Select Sauté mode on High. Once it reads HOT, add the butter, and stirring with a wooden spoon, melt it.
Add sliced onions and brown sugar to the Instant Pot. Sauté for about 15-20 minutes or until onions are golden brown and caramelized. Stir occasionally.
Next, add minced garlic, thyme, red wine, Worcestershire sauce, and salt and pepper to taste. Stir for 1-2 minutes.
Then, add the beef broth. Make sure you do not go over the MAX line of the inner pot.
Seal pressure cooker lid and cook on high pressure for 20 minutes. Followed by a 15 minutes Natural Pressure Release.
After the time is done, release remaining pressure by allowing steam to vent, then remove the lid. Stir the soup.
Turn on the oven broiler.
Before serving, top each serving bowl with a slice or two of French baguette and some sliced or shredded Gruyere cheese.
Place the bowl on a baking sheet and transfer into the oven for few minutes to broil. Broil until cheese is melted, bubbly and has a golden brown color.