Balsamic Red Onion And Gruyère Panini

This balsamic red onion and gruyère panini features caramelized red onions drizzled with balsamic vinegar, paired with rich gruyère cheese, all pressed between crispy bread. It's a delightful combination of sweet and savory flavors, perfect for a satisfying lunch or dinner.
This recipe is french style, lunch, scaled for 4 servings, with 15 min prep and 10 min cook.
Prep: 15 min · Cook: 10 min · Total: 25 min · Serves: 4
Quick cooking notes
- Core ingredients include gruyère cheese, salt, red onion, balsamic vinegar.
- Follow all 9 steps in order for the intended texture and doneness.
- Ingredient quantities listed below are for 4 servings.
Ingredients
- 200 g gruyère cheese (sliced)
- 1 tsp salt
- 2 medium red onion (sliced)
- 4 tbsp balsamic vinegar
- 1 tsp black pepper
- 2 tbsp olive oil
- 8 slices sourdough bread
Instructions
- Heat the olive oil in a skillet over medium heat.
- Add the sliced red onions and salt, cooking until they are soft and caramelized, about 10 minutes.
- Stir in the balsamic vinegar and cook for an additional 2 minutes until the mixture is well combined.
- Remove the onions from the heat and set aside.
- Assemble the panini by placing a slice of sourdough bread on a clean surface, topping it with a layer of Gruyère cheese, followed by a generous portion of the balsamic red onions, and another slice of cheese on top.
- Finish with another slice of sourdough bread to complete the sandwich.
- Preheat a panini press or a skillet over medium heat.
- Grill the sandwich for about 3-4 minutes on each side, or until the bread is golden brown and the cheese is melted.
- Remove from the heat, slice in half, and serve warm.
Nutrition (per serving)
- Calories: 410
- Protein: 15 g
- Fat: 20 g
- Carbohydrates: 43 g
- Fiber: 3 g
- Sugar: 4 g
- Sodium: 650 mg
Nutrition values are estimates based on stored ingredient totals and serving size.
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