mediumsoupvegetarianCC0 1.0 Universal
Classic Slow-Simmered French Onion Soup
A deeply flavorful, historic soup made of slow-caramelized yellow onions gently simmered in a rich thyme-scented broth.
Prep
15 min
Cook
45 min
Total
60 min
Ingredients
4servings
- Large yellow onionsPeeled and thinly sliced into half-moons800 g
- Olive oil20 ml
- Garlic clovesMinced2 piece
- Rich vegetable broth1000 ml
- Dried thyme1 tsp
- Bay leaf1 piece
- Apple cider vinegar1 tbsp
- Salt1 pinch
- Black pepper1 pinch
Preparation Steps
1
Heat olive oil in a heavy Dutch oven over medium-low heat. Add sliced onions and a pinch of salt.
2
Cook onions for 25-30 minutes, stirring occasionally with a wooden spatula, until deeply caramelized and rich golden-brown.
27 min timer
3
Add garlic, thyme, and deglaze with apple cider vinegar. Pour in vegetable broth and bay leaf. Simmer for 15 minutes, removing bay leaf before serving.
15 min timer
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Provenance & Public Domain Audit
Source: Historical Public Domain Culinary Archives - French Onion Soup (pre-1929) (Boston Cooking-School Cook Book / USDA Nutrition Guide)
Legal status: Public Domain (Pre-1929 Work) • 17 U.S.C. § 105
License: Creative Commons CC0 1.0 Universal
