01 - Toss blueberries with honey and black pepper in a small bowl until evenly coated. Set aside to allow flavors to meld.
02 - Apply a thin, even layer of softened cream cheese to one side of each bread slice, ensuring complete coverage to the edges.
03 - Distribute shredded cheddar cheese over two bread slices on top of the cream cheese. Spoon prepared blueberry mixture evenly across the cheddar layer.
04 - Place remaining bread slices cream cheese side down atop the filling to form complete sandwiches. Press gently to adhere layers.
05 - Generously butter the outside surfaces of each sandwich, ensuring even coverage for optimal golden browning.
06 - Heat large skillet over medium heat. Place sandwiches in pan and cook 3-4 minutes per side, pressing gently with spatula, until bread turns golden brown and cheese melts completely.
07 - Transfer sandwiches to cutting board and let rest for 1 minute to set. Slice diagonally and serve immediately while hot.