What makes French onion soup special?

Its deep flavor comes from slowly caramelized onions and savory broth.

Can I make French onion soup vegetarian?

Yes, use vegetable broth instead of beef broth for a vegetarian option.

Refrigerate in an airtight container for up to 3 days.

Restaurant

A classic French dish made with caramelized onions, melted cheese, and broth.

W 100 g

90 kcal

1 cup

215 kcal

(240 g)

Białko	Węglowodany	Tłuszcz
3 g / 100g	10 g / 100g	4 g / 100g

Where the calories come from

Protein 14% · Carbs 45% · Fat 41%

Share of energy: 4 kcal per gram of protein and carbs, 9 kcal per gram of fat.

1 cup (240 g, 215 kcal) is 11% of a 2,000 kcal day. 2,000 kcal is the reference day used on nutrition labels, not a personal target.
Burning 1 cup takes about 52 min of brisk walking. Estimate for a 70 kg adult walking briskly (about 4 kcal a minute).

French Onion Soup is number 1 of 6 by calories per 100 g, lowest first. The similar foods average 170 kcal per 100 g.

Food	kcal / 100 g	Protein / 100 g
French Onion Soup	90	3 g
Crunchy Vegetable Sushi	140	3 g
Savory Lentil Shepherd's Pie	150	9 g
Savory Veggie Sushi	150	3 g
Doro Wat (Ethiopian Chicken Stew)	200	25 g
Savory Okonomiyaki	210	8 g

Nutrition data updated June 12, 2026.

5/10

Moderate calorie content; ideal as a starter or paired with a salad.

What makes French onion soup special?: Its deep flavor comes from slowly caramelized onions and savory broth.
Can I make French onion soup vegetarian?: Yes, use vegetable broth instead of beef broth for a vegetarian option.
How can I store leftovers?: Refrigerate in an airtight container for up to 3 days.

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