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Quick and Simple Onion Soup

5 from 1 vote
Roni Cohen – @ronis_recipes
Incredibly delicious and simple onion soup – warm you up in no time.
Servings: 4



  • 10 onions, half-moon sliced
  • cup/100 grams butter, cut into cubes
  • 1 tablespoon coarse salt
  • ½ teaspoon ground white pepper
  • 6 thyme sprigs
  • cups/1½ liters water/broth/stock


  • 1 baguette, cut into 1" thick slices
  • Shredded mozzarella
  • Shredded parmesan


  • Melt the butter in a pot over medium-high heat, add the onions and stir for 2 minutes.
  • Lower the heat to medium-low and stir every 10-15 minutes until the onions are caramelized (takes about an hour, but it is totally worth it).
  • Add salt, pepper, thyme and your liquid of choice. Mix well, cover with a lid and cook for 20 minutes.
  • While the soup is cooking, heat up the oven to 400 F (200 C). Add grated mozzarella and grated parmesan on each baguette slice and bake until the cheese has melted, about 5 minutes. Drop a couple of cheesy toasts in each soup bowl.


Frequently Asked Questions

Can I bake the soup in a Dutch oven instead of using the stovetop?
Absolutely! We recommend baking your soups to get the best flavors, and the longer you bake – the better the soup will come out. Ideally, you want to bake the soup for 4 to 5 hours in a 300 °F (150 °C) oven. If you want to speed things up, bake at 350 °F (175 °C) for 90 minutes.

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