French Onion Soup Au Gratin Recipe
A delicious mixture of Gruyere and mozzarella cheeses make the perfect golden brown gratin on the French onion soup at Abe and Louie's in Boca Raton, Florida. Be sure to sauté the onions until you get a rich, caramel color. This will bring out the sweetness and reduce the sherry until almost dry.
This recipe was originally published in the South Florida Sun Sentinel.
French Onion Soup au Gratin Recipe
A delicious mixture of Gruyere and mozzarella cheeses make the perfect golden brown gratin on the French onion soup at Abe and Louie's in Boca Raton, Florida.
Prep Time
15
minutes
Cook Time
32
minutes
Servings
12
Servings
Total time: 47 minutes
Ingredients
- 3 pound red onions, sliced 1/4-inch thick
- 3 pound yellow onions, sliced 1/4-inch thick
- 1/2 tablespoon minced garlic
- 1 1/2 cups cooking sherry
- 3 quarts water
- 4 ounce beef bouillon base
- 4 ounce veal demi-glace base
- 3/4 teaspoon ground white pepper
- 1 1/2 tablespoons granulated onion
- 3 cup croutons
- 24 ounce grated gruyere cheese
- 24 ounce grated mozzarella cheese
Directions
- In a large stock pot over medium-high heat, melt 4 ounces (1 stick) unsalted butter. Add 3 pounds sliced red onions and 3 pounds sliced yellow onions. Sauté until caramelized. Add 1/2 tablespoon minced garlic and cook for an additional 5 minutes, stirring frequently.
- Add 1 1/2 cups cooking sherry to deglaze, reduce heat and simmer until almost dry.
- Add 3 quarts water, 4 ounces beef bouillon base, 4 ounces veal demi-glace base, 3/4 teaspoon ground white pepper and 1 1/2 tablespoons granulated onion. Simmer for 30 minutes, stirring frequently.
- To serve, preheat broiler to high. Using an ovenproof crock or bowl, ladle soup into bowl. Top each serving with 1/4 cup croutons. This keeps the cheese from sinking.
- Sprinkle each serving with 2 ounces Gruyere and 2 ounces mozzarella cheese. Place under broiler until golden brown and bubbly, serve immediately.
Nutrition
| Calories per Serving | 561 |
| Total Fat | 33.0 g |
| Saturated Fat | 19.8 g |
| Trans Fat | 0.0 g |
| Cholesterol | 112.8 mg |
| Total Carbohydrates | 30.7 g |
| Dietary Fiber | 4.4 g |
| Total Sugars | 10.6 g |
| Sodium | 980.9 mg |
| Protein | 33.0 g |
The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.
