Delightful and EASY little smoked salmon and cucumber appetisers, and healthy too, with NO pastry! These are a breeze to make but they tick all the taste boxes, as well as being elegant. Cucumbers do vary in size, and I have suggested a medium cucumber, which is about 10" to 12" long.........however, any size will do!! Adjust the crème fraiche to how many cups you yield from a cucumber, I managed to make 30 cups and used 10 tablespoons of crème fraîche for that amount, 1 teaspoon per cup. Serve these with cocktails and pre-dinner drinks, or as part of a buffet. The cucumber cups and crème fraîche can be prepared beforehand, but these should only be assembled 1 hour before serving (at the most) and covered in cling film to ensure the smoked salmon does not dry out. Allow 2 to 4 per person, depending on what else is served.