# Ingredient List:
→ 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
# Steps:
01 - Heat olive oil and 1 tablespoon butter in a skillet over medium heat. Add sliced leeks with salt and pepper. Cook, stirring occasionally, until leeks are soft and caramelized, approximately 12 to 15 minutes. Remove from heat and set aside.
02 - Lay out all bread slices on a clean work surface. Spread the softened butter on one side of each slice.
03 - Place two slices of bread buttered side down. Distribute caramelized leeks evenly on top of each. Layer Havarti cheese slices over the leeks. Top with remaining bread slices, buttered side up.
04 - Heat a clean skillet or griddle over medium-low heat. Place assembled 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.
05 - Slice sandwiches diagonally in half and serve immediately while warm.