Brown Onion Soup
A rich, velvety Anglo-Indian onion soup where caramelized onions and root vegetables are simmered in stock, pureed until smooth, and thickened with a nutty brown roux. Unlike the clear French onion soup, this is a smooth, thick potage.
Ingredients
- 1.5 liters Beef or Vegetable Stock (Beef stock provides the traditional brown color)
- 1 whole Onion (medium), peeled and quartered
- 1 large Carrot, peeled and roughly chopped
- 1 stalk Celery stalk, roughly chopped
- 1 medium Turnip, peeled and roughly chopped
- 6 whole Large Onions, thinly sliced
- 3 tbsp Butter (for frying)
- 2 tbsp Butter (for roux)
- 2 tbsp All-purpose flour
- 1 tsp Salt (Adjust to taste)
- 0.5 tsp Black Pepper, freshly ground
Instructions
- 1In a large soup pot, combine the stock, quartered onion, carrot, celery, and turnip. Bring to a boil, then reduce heat and simmer until the vegetables are quite tender.
- 2While the stock is simmering, slice the 6 large onions. Heat 3 tablespoons of butter in a frying pan over medium heat. Add the sliced onions and fry them until they are a rich brown color, stirring frequently to ensure they brown evenly without burning black.
- 3Add the browned onions (and any butter from the pan) into the pot with the stock and vegetables. Simmer together until the fried onions are completely tender.
- 4Rub the entire contents of the pot through a wire sieve into a clean bowl or pot, pressing down to extract all the pulp and flavor. Alternatively, use an immersion blender to blend until smooth, then pass through a sieve for a finer texture.
- 5In a small saucepan, melt the remaining 2 tablespoons of butter. Whisk in the flour and cook over medium-low heat, stirring constantly, until the mixture turns a nutty brown color (about 3-5 minutes).
- 6Return the pureed soup to the heat. Whisk in the brown roux and simmer for a few minutes until the soup thickens slightly. Season with salt and pepper to taste before serving.