Fill a pot with water and bring to a rapid boil. Add string beans and boil for 10 minutes for crisp string beans or 15 minutes for softer string beans. Drain in a sieve and run cold water over the string beans. Let cool.

In a frying pan, heat oil. Add onion and mix. Spread onion out in the pan and let cook, stirring occasionally, for 30 minutes, until caramelized.

Spread fruit and nuts in a baking sheet. Roast for eight to 12 minutes, stirring after a few minutes.

Sprinkle salt and pepper on cooked string beans and mix. Add the sautéed onions and mix.

Plate the string beans, adding dried fruit and nuts on top.