Balsamic Red Onion and Gruyere Panini-Grilled Cheese

May 09, 2023May 9, 20230 1

Balsamic Red Onion and Gruyere Panini-Grilled Cheese with a Touch of Truffle Oil

by The Chefin Sandwich

Prep

5 min

Cook

30 min

Ready In

35 min

Level

Easy

Rating

Ingredients

Nutrision Information

Servings Per Recipe

Calories

474

Sugar

Fat

26g

Balsamic Red Onion and Gruyere Panini-Grilled Cheese is an elevated version of the classic grilled cheese sandwich. The caramelized onions add a sweet note and combine well with the tangy balsamic vinegar. The nutty melted gruyere cheese creates a gooey texture that pairs perfectly with the sourdough bread. Adding a drizzle of white truffle oil elevates this sandwich into a gourmet treat. This simple comfort food is a quick and delicious meal that can be enjoyed for lunch or dinner. It will definitely be a crowd-pleaser with its rich flavors and gourmet touch.

Instructions

1.	In a skillet over medium heat, add the sliced onion, balsamic vinegar, olive oil, salt, and sugar. Stir to coat all of the onions in the mixture. Cook until the onions are caramelized and soft, about 20-25 minutes.
2.	Begin to preheat a panini press or grill pan on medium-high heat.
3.	To assemble the sandwiches, layer shredded gruyere cheese on 4 slices of sourdough bread. Top with caramelized onions and a drizzle of white truffle oil if desired. Place the remaining slices of sourdough bread on top to form a sandwich.
4.	Place the assembled sandwiches onto the panini press or onto the grill pan. Cook until the bread is crispy and the cheese is melted, about 4-5 minutes per side.
5.	Serve hot and enjoy!

PROS

This sandwich is bursting with rich flavor from the caramelized onions, tangy balsamic vinegar, and nutty gruyere cheese.

The touch of truffle oil adds a gourmet touch.

It is a quick and easy meal that can be made for lunch or dinner.

CONS

This sandwich is high in fat and calories, so it should be enjoyed in moderation as part of a balanced diet.

The preparation of caramelized onions can be time-consuming.

HEALTH & BENEFITS

While this sandwich may not be the healthiest option, it still has some health benefits.
The balsamic vinegar used in the recipe has been shown to help regulate blood sugar levels and contains antioxidants.
The onions are high in Vitamin C, fiber and are known for their anti-inflammatory properties.

	1 red onion , thinly sliced
	1 tablespoon balsamic vinegar ( or to taste )
	1/2 tablespoon olive oil
	1 pinch salt
	1 teaspoon sugar
	8 slices sourdough bread
	4 ounces gruyere cheese , shredded
	white truffle oil ( optional )