Ingredients
Scale
- 4 red onions
- 4 tablespoons salted butter
- 4–6 slices hearty white bread
- 3 cups shredded Gruyere cheese
- 1 can beef broth (14.5 oz)
- 1/3 cup apple juice or vinegar
- 2 tablespoons salted butter
- 2 tablespoons all-purpose flour
- 1/2 teaspoon dried thyme leaves
- 1/4 teaspoon pepper
Instructions
- Caramelize the onions by melting butter in a Dutch oven over medium heat. Add sliced onions and sprinkle with sugar. Cook for about 35 minutes until soft and golden.
- For the dipping broth, melt additional butter in the same pot, whisk in flour, then add thyme, apple juice (or vinegar), beef broth, and pepper. Stir until thickened.
- Assemble sandwiches by buttering bread slices, toasting them in a frying pan, adding Gruyere cheese and caramelized onions between two slices, cooking until melted.
- Serve sliced sandwiches with warm dipping broth on the side.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Main
- Method: Frying
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 520
- Sugar: 5g
- Sodium: 850mg
- Fat: 30g
- Saturated Fat: 18g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 18g
- Cholesterol: 60mg