This is the best French onion soup recipe I know. I have been making it for 30 years and it never fails to please. It makes an exquisite presentation too!
Ingredients
- butter: 4 Tbsp
- red onions: 2 piece (sliced)
- sweet onions: 2 piece (sliced)
- salt: 1 tsp
- chicken broth: 1 can (48 fluid ounce can)
- beef broth: 1 can (14 ounce can)
- red wine: 0.5 cup
- Worcestershire sauce: 1 Tbsp
- sprigs fresh parsley: 2 piece
- sprig fresh thyme leaves: 1 piece
- bay leaf: 1 piece
- balsamic vinegar: 1 Tbsp
- salt and freshly ground black pepper: (to taste)
- thick slices French bread: 4 piece
- slices Gruyère cheese, at room temperature: 8 piece
- Asiago cheese, at room temperature: 0.5 cup (shredded)
- pinches paprika: 4 piece
Metric Conversion
Stages of cooking
-
Melt butter in a large pot over medium-high heat. Stir in red onions, sweet onions, and salt. Cook, stirring frequently, until onions are caramelized and almost syrupy, about 35 minutes. Dotdash Meredith Food Studios
-
Stir in chicken broth, beef broth, red wine, and Worcestershire sauce. Bundle parsley, thyme, and bay leaf with kitchen twine; add to the pot. Simmer over medium heat for 20 minutes, stirring occasionally. Remove and discard herb bundle. Reduce heat to low; stir in vinegar and season with salt and pepper. Cover soup and keep warm over low heat while you prepare the toast. Dotdash Meredith Food Studios
-
Set an oven rack about 6 inches from the heat source and preheat the oven's broiler. Arrange bread slices on a baking sheet and broil, turning once, until well toasted on both sides, about 3 minutes. Remove from heat; do not turn off the broiler. Dotdash Meredith Food Studios
-
Arrange 4 large oven-safe bowls or crocks on a rimmed baking sheet. Fill each bowl 2/3 full with hot soup. Top each bowl with 1 slice of toasted bread, 2 slices Gruyère cheese, and 1/4 of the Asiago cheese. Sprinkle a little bit of paprika over the top of each one. Dotdash Meredith Food Studios
-
Cook under the hot broiler until bubbly and golden brown, about 5 minutes. Cheese will cascade over the sides of the crock and form a beautifully melted crusty seal as it melts. Dotdash Meredith Food Studios
-
Serve hot and enjoy! DOTDASH MEREDITH FOOD STUDIOS
