PrintCaramelized Onion Grilled Cheese
Enjoy a gourmet grilled cheese sandwich with sweet caramelized onions, melty Gruyere cheese, and tangy sourdough bread. This recipe offers a perfect balance of sweet and savory flavors for an easy and satisfying meal.
- Prep Time: 10 min
- Cook Time: 30 min
- Total Time: 40 min
- Yield: 2 servings 1x
- Category: Lunch
- Method: Pan-Frying
- Cuisine: American
- Diet: Vegetarian
Ingredients
Scale
- 2 tablespoons unsalted butter, divided
- 1 large yellow onion, thinly sliced
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 4 slices sourdough bread
- 2 tablespoons mayonnaise
- 4 ounces Gruyere cheese, grated or thinly sliced
- Optional: 1 tablespoon blackberry jam
Instructions
- Melt 1 tablespoon of butter in a skillet over medium-low heat. Add the sliced onion, salt, and pepper. Cook, stirring occasionally, until the onions are deeply golden brown and caramelized, about 20-30 minutes. If they start to stick, add a tablespoon of water. Remove onions from the skillet and set aside.
- Spread mayonnaise on one side of each slice of sourdough bread.
- Place two slices of bread, mayonnaise-side down, in the skillet over medium heat.
- Layer the Gruyere cheese evenly over the bread in the skillet.
- Top the cheese with the caramelized onions. If using, spread blackberry jam on the un-mayonnaised side of the remaining two bread slices and place them jam-side down on top of the onions.
- Grill for 3-5 minutes per side, until the bread is golden brown and toasted, and the cheese is melted and gooey.
- Slice the sandwich in half and serve immediately.
Notes
- For perfectly caramelized onions, use low heat and be patient.
- You can substitute Gruyere with Swiss, cheddar, or provolone cheese.
- A cast iron skillet helps achieve an even crisp on the bread.
- This sandwich is delicious on its own or served with a side salad.
- Consider this an easy weeknight dinner idea.
Nutrition
- Serving Size: 1 sandwich
- Calories: 550
- Sugar: 12g
- Sodium: 600mg
- Fat: 30g
- Saturated Fat: 15g
- Unsaturated Fat: 15g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 3g
- Protein: 25g
- Cholesterol: 75mg
Find it online: https://www.purecookingjoy.com/caramelized-onion-grilled-cheese/