French onion soup is a classic, originating as a super-inexpensive but warming supper in 18th-century Paris. We especially love this dish on cold winter evenings. The rich flavors of the beef broth are complemented by caramelized onions and melted gruyere (if you can't find an inexpensive one, you can use swiss cheese instead). Onions are cheap, flavorful, and good for you, too—they are packed with vitamin C, flavonoids, and phytochemicals (compounds that have been shown to prevent some diseases). Our recipe is inspired by Julia Child, though we take a few cost- and time-saving shortcuts. We use water in addition to the beef stock, and you can repurpose your stale French bread here. This also is a perfect dish to freeze for another day.
Makes 8 Servings
- $2.56 per serving
Show Detailed Pricing
-
3
tablespoons
oil (or butter) 15¢
-
6
cups
onion, sliced thinly $2.63
-
1
teaspoon
sugar 1¢
-
3/4
teaspoon
salt 1¢
-
3
tablespoons
flour 4¢
-
1/2
cup
white wine $2.03
-
32
ounces
beef broth $2.80
-
4
cups
water 4¢
-
1
baguette (about 10-oz), sliced into rounds $2.68
-
1/2
pound
gruyere cheese (or swiss cheese), grated $10.13
-
1
pinch
salt and pepper, to taste 1¢
-
*
1
teaspoon
parsley, chopped optional
-
*
3
tablespoons
cognac optional
-
Total Cost:
$20.52
-
Per Serving:
$2.56
*Optional ingredients are not counted towards pricing
Prep Time: About 10 minutes
Cook Time: About 60 minutes
Instructions:
- In a large covered saucepan, cook onions in oil or butter slowly over low heat until they are softened, about 10 minutes. Uncover, sprinkle in sugar and salt, and cook over medium-high heat until browned, about 20 minutes, stirring every few minutes. The sugar helps caramelize the onions to a rich brown color. Then add the flour and stir for a few more minutes.
- Remove the pan from heat and slowly and carefully pour in the wine, beef broth, and water. Add salt and pepper to taste. Reduce heat to low and simmer for about 30 minutes (if you're short on time, you can simmer for less time, or let it simmer longer to allow the flavors to develop further). Add the cognac just before serving.
- Meanwhile, preheat the oven to 350 degrees. Place the rounds of sliced baguette on a sheet pan and put half the cheese on top of the rounds. Bake them for about 10-15 minutes, until the cheese is nicely melted and the bread lightly browned.
- Ladle the soup into bowls, stir in the remaining grated cheese and top with 2 or 3 of the bread rounds. Sprinkle with chopped parsley if you like, and serve it up.