Mumble Jumble Potatoes

For some strange reason do I always find pretty much everything I need for this recipe at home so I love to make it (and it is very tasty and popular with the husband). It is easy to just add more to serve more people and it is really delicious- the ingredients come together to make a really tasty meal!

For two persons:
3-4 large potatoes (~1lb)
spring onions
pickled dill cucumber (gherkins)
1 hard boiled egg, roughly chopped
cooked ham, cut into small pieces
sour cream or creme fraiche
2 tbsp white wine vinegar
horseradish sauce or freshly grated, salt, pepper (quantities according to taste)
optionals:
finely chopped apple
cooked beetroot, diced
salted anchovies, roughly chopped

This recipe is extremely flexible so just use what you have or replace one thing with something else e.g. ham for roast beef leftover; mayonnaise instead of boiled egg, cream cheese instead of sour cream. Just remember than you can always leave things out!