# Components:
→ Vegetables
01 - 2 medium leeks, white and light green parts only, thinly sliced
02 - 1 tablespoon olive oil
03 - 1 tablespoon unsalted butter
04 - Salt to taste
05 - Black pepper to taste
→ Cheese
06 - 4 ounces Havarti cheese, sliced
→ Bread & Spreads
07 - 4 slices artisan or sourdough bread
08 - 2 tablespoons unsalted butter, softened
# Method:
01 - Heat olive oil and 1 tablespoon butter in a skillet over medium heat. Add sliced leeks, salt, and pepper. Cook, stirring occasionally, until leeks are soft and caramelized, approximately 12 to 15 minutes. Transfer to a plate and set aside.
02 - Lay out all bread slices. Spread one side of each slice evenly with softened butter.
03 - Place two slices of buttered bread on a clean surface, buttered side down. Distribute caramelized leeks evenly on top of each slice. Layer Havarti cheese slices over the leeks. Top with remaining bread slices, buttered side up.
04 - Heat a skillet or griddle over medium-low heat. Place sandwiches in the skillet and cook until bread is golden brown and cheese is melted, approximately 3 to 4 minutes per side. Press gently with a spatula to ensure even grilling and proper cheese melting.
05 - Slice sandwiches in half diagonally and serve warm immediately.