Preheat the oven to 200C (180C fan / 400F). If you're using canned salmon, you can skip to step two, otherwise, cook the salmon according to pack instructions. Allow to cool, then flake the salmon with a fork.
Place the potato, salmon, salt, pepper and chives (if using) in a bowl.
Add the olive oil and mix together well with a fork.
Roll into eight equally sized balls and place on an oiled baking sheet. They'll weigh about 50g (1.8 oz) each.
Flatten each ball with the palm of your hand to create patties.
Bake for 20 minutes until just firm and golden, then serve as soon as cooled enough to be eaten safely.