01 - Combine cream cheese, minced chives, dill, parsley, lemon juice, garlic powder, salt, and pepper in a medium mixing bowl. Beat with a spatula or spoon until completely smooth and herbs are evenly distributed throughout.
02 - Lightly spread softened butter on one side of each bread slice to create a moisture barrier, preventing the bread from becoming soggy. This step is optional but recommended for optimal texture.
03 - Spread a thick, even layer of the herb cream cheese mixture onto each slice of bread, ensuring complete coverage to the edges.
04 - Arrange cucumber slices in a single, overlapping layer over half of the prepared bread slices, covering the cream cheese completely.
05 - Place the remaining bread slices cream cheese side down over the cucumber-topped slices. Press gently but firmly to seal the sandwiches together.
06 - Using a sharp knife, slice each sandwich diagonally into quarters or triangles to create classic tea sandwich shapes. Serve immediately or refrigerate covered for up to 2 hours before serving.