In a bowl mix the cream cheese, onion, chopped capers and mayonnaise.
In a second bowl add the honey and mustard sauce and dill, and mix well. The sauce is quite dense, so you must beat it lightly before serving.
Cover your chosen base with a generous portion of cream cheese, add the honey and mustard sauce and a roll of smoked salmon adjusting the quantity according to taste.
I assure you that this appetizer will go down a treat, like it has for me two times in a row.