Tuna salad

This salad is one of my favourites for lunch: wonderfully moist and with a nice mix of sweet, sour and tangy flavours.

250 g canned tuna
2 apples
2 carrots
2 celery sticks
Some oil and vinegar (white wine or cider works best)
Some fresh herbs (esp. dill and parsley)

Drain the tuna. Separate the chunks into individual flakes with a fork. [...]