Caramelized Onion and Apple Grilled Cheese Sandwich
4.25 from 4 votes
This Caramelized Onion & Apple Grilled Cheese Sandwich is a delicious fall take on a classic grilled cheese recipe. With the addition of sweet caramelized onions, crisp apples, and sage butter, it is so good and sure to be a favorite.
Prep time: 40minutes
Cook time: 1hour
Total time: 1hour
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6tablespoonunsalted butter, dividedroom temp
1honeycrisp applethinly sliced
2large yellow onionssliced ½ inch thick
2ozbrie cheesesliced into ½" slivers
Caramelize your onions first. Heat 2 tablespoon unsalted butter in a skillet on medium heat. Add the onions, stir every few minutes. At 10 minutes, add 1 teaspoon kosher salt. Continue to cook, stirring every few minutes for an additional 30-40 minutes until golden. Add 1 tablespoon water if the skillet starts to look dry.
Combine chopped sage with 4tbsp butter and 1 teaspoon kosher salt
To assemble, lay down a non-buttered piece of bread. Top with brie cheese, then cheddar cheese, then apples in a single layer slightly overlapping, then ¼ cup caramelized onions, then additional cheddar cheese, ending with the top piece of bread. Spread 1 tablespoon sage butter on the top piece of bread.
Heat a skillet on medium heat with 1 tablespoon olive oil. Place the sandwiches in buttered side down. Spread the remaining butter evenly on the tops of the exposed bread. Cook on each side for about 6 minutes until golden. Serve warm & enjoy!