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Gooey Cheese Sandwich Recipe

A quick and indulgent Gooey Cheese Sandwich Recipe featuring melted cheddar, mozzarella, and Gruyère between golden, buttery sourdough—ready in just 15 minutes for the ultimate comfort snack.
Prep Time 5 minutes
Cook Time 10 minutes
Course Main Course, Snack
Cuisine American
Servings 1
Calories 550 kcal

Ingredients
  

  • 2 slices sourdough bread about ½ inch thick
  • 2 tablespoons unsalted butter or mayonnaise
  • ½ cup about 2 ounces sharp cheddar, shredded
  • ¼ cup about 1 ounce mozzarella, shredded
  • 2 tablespoons about ½ ounce Gruyère, grated

Instructions
 

  • Prep the cheese: In a small bowl, toss the shredded cheddar, mozzarella, and grated Gruyère together.
  • Butter the bread: Spread 1 tablespoon of butter (or mayo) evenly on the outside of each slice of bread.
  • Assemble: Place one slice, buttered side down, on a cutting board. Pile the cheese blend on top, then cover with the second slice, buttered side up.
  • Heat the pan: Warm a nonstick skillet or cast-iron pan over medium–low heat.
  • Grill covered: Place the sandwich in the pan and immediately cover with a lid. Cook for 3–4 minutes, pressing gently with a spatula, until the bottom is golden brown.
  • Flip and finish: Carefully flip the sandwich, cover again, and cook for another 3–4 minutes until the second side is crisp and cheese is fully melted.
  • Rest and slice: Transfer to a cutting board, let rest for 1 minute, then slice diagonally and serve warm.

Notes

  • Cheese swaps: Swap Gruyère for Fontina or Swiss for a different flavor profile.
  • Add‑ins: Layer in tomato slices, crispy bacon, or caramelized onions before grilling.
  • Storage: Wrap cooled sandwiches tightly in foil; refrigerate up to 2 days.
  • Reheating: Reheat in a skillet over low heat (covered) or in a 350°F oven for 8–10 minutes to restore crispness.
  • Vegan option: Use vegan butter and dairy‑free cheese slices; grill the same way.