Cut the smoked salmon into rough slices, reserving some for garnish if desired. Add them to a food processor, together with cream cheese and lemon juice. Process until smooth.

In a stand mixer, whisk some heavy cream until stiff peaks have formed. Add the salmon mixture and stir carefully to combine.

Test for seasoning and add salt and black pepper if necessary. Transfer the dip into a serving bowl, and garnish with the reserved strips of smoked salmon.