01 - In a small mixing bowl, combine cream cheese, unsalted butter, dill (if using), salt, and black pepper. Stir until the mixture is smooth and fully incorporated.
02 - Evenly spread the cream cheese mixture onto each slice of white sandwich bread using a butter knife or offset spatula.
03 - Place overlapping cucumber slices across half of the prepared bread pieces to ensure even coverage.
04 - Position the remaining slices of bread, spread side down, over the cucumbers to create sandwiches.
05 - Press each sandwich gently, then use a sharp knife to cut each into four equal rectangles or triangles.
06 - Serve immediately, or cover sandwiches with a damp paper towel and refrigerate to retain freshness until service.