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Cross-section view of a crispy sourdough grilled cheese showing the perfect cheese pull and sealed bread interior

Crispy Sourdough Grilled Cheese Sandwiches

This rigorously tested recipe engineers the perfect sourdough grilled cheese by creating an internal moisture barrier, ensuring a shatteringly crisp exterior and a luxurious, fully melted, non-soggy interior.
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Prep Time 5 minutes
Cook Time 6 minutes
Total Time 11 minutes
Course Main Course
Cuisine American
Servings 3 sandwiches
Calories 828 kcal

Equipment

  • Cast iron skillet
  • Wire rack (for resting)

Ingredients
  

Sandwich Components

  • 6 slices sourdough bread The foundation of the sandwich, providing the necessary acidity and a robust crumb.
  • 4 tbsp salted butter, softened Essential for creating the moisture barrier and the golden exterior.
  • 3 slices cheddar cheese Provides the classic sharp flavor profile.
  • 3 slices havarti cheese Chosen for its superior melting capabilities and creamy texture.
  • 3 slices gruyere cheese Adds a sophisticated, nutty depth to the blend.
  • 1/2 cup shredded parmesan cheese Brings a high concentration of salt and umami; integrate into the other cheeses.

Instructions
 

Assembly and Grilling

  • Heat a cast iron skillet over medium-low heat for one to two minutes to allow the pan to warm evenly. The heat must remain medium-low to ensure slow thermal transfer.
  • Butter both the inside and outside surfaces of each slice of sourdough bread thinly, creating the essential hydrophobic moisture barrier on the interior.
  • Layer the cheese assembly on one slice of bread: place the havarti, cheddar, and gruyere slices evenly, then sprinkle the shredded parmesan on top. Top with the second slice of bread, butter-side out.
  • Place the assembled sandwich in the warmed skillet. Grill on the first side until it achieves a deep golden brown color (about 2-4 minutes). Watch for the butter to foam and then subside to a golden hue.
  • Flip the sandwich and grill the second side until it matches the first side in color and the internal cheese is completely melted and viscous.
  • Remove the grilled cheese from the pan and allow it to rest on a wire rack or cutting board for two minutes to allow the internal structure and cheese to stabilize before slicing.

Notes

Pro Tip: Use butter that is truly soft and at room temperature to avoid tearing the delicate sourdough crumb when spreading. When reheating leftovers, use an air fryer set to 350°F for about four minutes or place the sandwich back into a dry skillet over low heat with a lid for the first minute to trap steam and melt the cheese without burning the bread.

Nutrition

Calories: 828kcalCarbohydrates: 68gProtein: 39gFat: 45g
Keyword four-cheese, grilled cheese
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