Step One - Slice the cucumber into long thin slices. Lay the sliced cucumber on a paper towel to absorb the moisture and dab with a paper towel to dry.
Step Two - Lay the cucumber slices overlapping each other slightly on parchment paper.
Step Three - Smear the cucumber slices with the cream cheese, place the smoked salmon on top of the cheese, finally place the sliced avocado over the salmon, and season with a pinch of salt and pepper.
Step Four - Carefully roll everything up as tightly as possible to form the roll. Secure the roll with toothpicks.