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Caramelized Onion Apple Grilled Cheese Recipe

4.9 from 70 reviews

A deliciously comforting Caramelized Onion Apple Grilled Cheese sandwich combining sweet caramelized onions with crisp apple slices and melted cheese grilled to golden perfection on buttery bread.

Ingredients

Scale

Bread and Butter

  • 2 slices of bread (white or sourdough recommended)
  • 2 tablespoons butter, softened

Filling

  • 1 large onion, thinly sliced
  • 1 medium apple, thinly sliced (such as Granny Smith or Honeycrisp)
  • 23 slices of cheese (Cheddar, Gruyère, or your preferred melting cheese)

Instructions

  1. Caramelize the onions: Heat a skillet over medium-low heat and add a small amount of butter or oil. Add the thinly sliced onions and cook slowly, stirring occasionally, for about 20-25 minutes until they turn golden brown and sweetly caramelized. Season lightly with salt.
  2. Prepare the sandwich: Butter one side of each slice of bread. On the unbuttered side of one slice, layer the caramelized onions, apple slices, and cheese. Top with the other slice of bread, butter side facing out.
  3. Grill the sandwich: Heat a skillet or griddle over medium heat. Place the sandwich in the skillet and cook for about 3-4 minutes per side until the bread is golden brown and crispy and the cheese has melted. Press lightly with a spatula for even grilling.
  4. Serve: Remove from the skillet, slice in half if desired, and serve warm for the best melty, sweet, and savory experience.

Notes

  • Use firm apples that hold their shape well during cooking, like Granny Smith or Honeycrisp.
  • For extra flavor, add a pinch of thyme or a drizzle of honey with the caramelized onions.
  • You can substitute cheese with a dairy-free alternative for a different dietary option.
  • Adjust cooking heat as needed to prevent bread burning before the cheese melts.

Keywords: Caramelized onion, apple, grilled cheese, sandwich, caramelized onions, gooey cheese, sweet and savory