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Instant Pot French Onion Soup

A warm, savory French onion soup made in the Instant Pot, featuring caramelized onions, rich beef broth, and topped with melted Gruyère cheese and French bread.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Appetizer, Soup
Cuisine: French
Calories: 350
Ingredients Method Notes

Ingredients
  

For the Soup
  • 4 large onions, thinly sliced
  • 4 cups beef broth
  • 1 cup water
  • 1 tablespoon balsamic vinegar
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 4 cloves garlic, minced
  • 1 teaspoon thyme
  • Salt and pepper, to taste
  • French bread slices
  • 1 cup shredded Gruyère cheese

Method
 

Preparation
  1. Slice the large onions thinly to ensure even caramelization.
  2. Turn on the Instant Pot and select 'Sauté' mode. Add the butter and olive oil, then add the sliced onions. Stir occasionally for about 10-15 minutes until caramelized and golden brown.
  3. Add minced garlic, balsamic vinegar, thyme, salt, and pepper to the caramelized onions. Stir for an additional minute.
  4. Pour in the beef broth and water, scraping any brown bits from the bottom of the pot.
  5. Close the lid, ensuring the valve is set to sealing. Select 'Manual' and set to cook on high pressure for 20 minutes.
  6. Once cooking time has elapsed, carefully perform a quick release.
  7. In oven-safe bowls, place a slice of French bread, ladle the soup over the bread, and top with Gruyère cheese. Broil in the oven or use a kitchen torch to melt the cheese.
  8. Serve and enjoy your Quick & Delicious Instant Pot French Onion Soup!

Notes

For best flavor, use a mix of yellow and sweet onions. If Gruyère is not available, mozzarella or provolone can be used as substitutes. Adjust seasoning according to taste. Leftovers can be stored in the refrigerator for up to 4 days.