Leeks with olives

Description
In Romanian: Praz cu masline.

Ingredients

 * 4-5 leeks,
 * 4 tablespoons oil,
 * 1/2 teaspoon sugar,
 * 1 tablespoon vinegar,
 * 1 tablespoon tomato sauce,
 * 5 oz/150 g olives,
 * salt,
 * pepper

Directions

 * 1) Clean and wash the leeks cut into medium size portions.
 * 2) Scald with boiling water. Drain and lightly fry in oil.
 * 3) Add salt, pepper, tomato sauce, sugar, vinegar and olives.
 * 4) Bake until the liquid is reduced.