Using a sharp knife, cut the crusts off the slices of bread and cut each slice into two or three small rectangles or circles.
Spread a thin layer of softened butter evenly over each bread slice using a small spoon or spreader, covering the entire surface.
Arrange thin cucumber slices over half of the buttered bread pieces, overlapping slightly to ensure full coverage and a visible cucumber layer.
Place the cucumber-topped bread slices on top of the plain buttered slices to create a sandwich, pressing lightly to secure.
Cut each assembled sandwich into smaller, bite-sized pieces, such as triangles or rectangles, and optionally garnish with chopped dill or chives for flavor and visual appeal.
4 slices white bread