Step 1: Prepare the Cucumber Base

1. Wash and dry the cucumber thoroughly.
2. Slice the cucumber into rounds approximately 1/4-inch thick. Arrange them in a single layer on a serving platter.

Step 2: Make the Cream Cheese Spread

1. In a medium mixing bowl, combine the softened cream cheese, sour cream (or Greek yogurt), lemon juice, chopped dill, garlic powder, salt, and black pepper.
2. Use a whisk or hand mixer to blend the ingredients until smooth and creamy. Adjust the seasoning to taste.

Step 3: Assemble the Snacks

1. Spread a dollop of the cream cheese mixture onto each cucumber slice using a spoon or piping bag for a neat presentation.
2. Roll or fold a small piece of smoked salmon and place it on top of the cream cheese spread.

Step 4: Garnish and Serve

1. Garnish each snack with a small sprig of fresh dill or a sprinkle of chopped chives.
2. Serve immediately, or cover the platter with plastic wrap and refrigerate for up to 1 hour before serving.