20-Min Cheesy Beef Onion Soup
Caramelized onions, beefy broth, and melted Swiss cheese on crusty bread — the weeknight version of the bistro classic. Ready in 20 minutes, tastes like you simmered it all day.
- Total time
- 20 min
- Servings
- 4
- Calories
- 285
- Protein
- 16g
Ingredients
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Open the appInstructions
Step 1
Heat a large pot over medium-high and add sliced onions with a pinch of salt.
Step 2
Cook onions, stirring often, until they turn golden brown and smell sweet, about 10 minutes.
Step 3
Pour in beef broth and bring to a simmer for 5 minutes, then taste and adjust salt and pepper.
Step 4
While soup simmers, arrange bread slices on a baking sheet and toast in a 400°F oven until golden, about 4 minutes.
Step 5
Ladle soup into broiler-safe bowls, top each with a slice of toasted bread and Swiss cheese.
Step 6
Broil 3 inches from heat until cheese melts and bubbles, about 2 minutes, then serve immediately.
Tools you’ll need
- large pot
- wooden spoon
- baking sheet
- broiler-safe bowls
- ladle
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