# What You'll Need:
→ Bread
01 - 4 slices sourdough bread or artisan bread
→ Cheese
02 - 4.2 oz Gruyère cheese, grated or thinly sliced
→ Spreads & Oils
03 - 2 tbsp unsalted butter, softened
04 - 1 to 2 tsp truffle oil, white or black
→ Seasoning
05 - Freshly ground black pepper to taste
06 - Pinch of sea salt, optional
# Steps:
01 - Lay out all four bread slices. Spread a thin layer of butter on one side of each slice.
02 - Flip the bread over and drizzle truffle oil on the unbuttered side of two slices. Evenly distribute Gruyère cheese over the truffle oil-drizzled slices.
03 - Lightly season the cheese with black pepper and a pinch of salt if desired. Top each sandwich with the remaining bread slices, with the butter facing outward.
04 - Heat a non-stick skillet or grill pan over medium-low heat. Place the sandwiches in the pan and cook for 3 to 4 minutes per side, pressing gently, until the bread is golden brown and crisp and the cheese is melted. Lower heat if the bread browns too quickly before cheese melts.
05 - Remove from the pan and let rest for 1 minute. Slice diagonally and serve immediately.