Ingredients
- 5 tablespoons unsalted butter
- 1 12 lbs large onions
- thinly sliced
- 2 tablespoons brown sugar
- 2 teaspoons paprika
- 5 tablespoons flour or 5 tablespoons cornstarch
- mixed with 1 cup of the broth
- 1 quart chicken broth
- 1 quart beef broth
- 1 12 teaspoons thyme
- 12 teaspoon salt
- fresh ground pepper
Instructions
- Heat the butter, add the onions, and cook slowly for 20 minutes covered.
- Remove the lid and stir in the sugar.
- Cook until golden brown and wilted (caramelized) on very low heat, stirring occasionally.
- Stir in the dry ingredients and broth, and simmer uncovered for 30 minutes.
- The soup may be adjusted for flavor with beef bouillon.
- The soup will keep in the refrigerator for 10 to 14 days and is always better after the first day.
- To serve, add toasted bread, and melt grated Swiss and Parmesan cheeses on top.
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