Vegan French Onion Soup
A plant-based twist on the classic French onion soup featuring deeply caramelized onions, a savory broth enriched with tamari and balsamic vinegar, and a bubbling vegan cheese topping.
Ingredients
Onions & Aromatics
- 4 Tbsp olive oil
- 6 large yellow onions thinly sliced
- 2 cloves garlic minced
Liquids & Seasonings
- 1 tsp salt
- 1 tsp sugar
- 0.5 cup dry white wine
- 6 cups vegetable broth
- 2 Tbsp tamari
- 2 Tbsp balsamic vinegar
Toppings
- 4 slices French bread
- 1.5 cups vegan cheese shreds
Instructions
Cooking Soup
- Heat olive oil in a large pot over medium-low heat. Add onions, salt, and sugar. Stir every 5 minutes until onions turn deep golden, about 40 minutes.
- Add minced garlic and cook 1 minute until fragrant.
- Pour in dry white wine and simmer 2 minutes, scraping up any browned bits.
- Stir in vegetable broth, tamari, and balsamic vinegar. Bring to a simmer, then reduce heat and cook 15 minutes.
Broiling
- Preheat the broiler.
- Ladle soup into oven-safe bowls. Top each with a slice of French bread and sprinkle vegan cheese over the top.
- Broil 3–5 minutes until cheese is melted and lightly browned.
Notes
Testing revealed that cooking onions low and slow is essential for a deep, sweet flavor.
Leftovers keep refrigerated for up to 4 days and freeze well for 3 months; thaw overnight and reheat gently on the stove.