Melted Leeks - cooking recipe

Ingredients

4 leeks, split 3/4 of the way, washed well
1 large onion, coarsely chopped
salt & freshly ground black pepper
1 large carrot, coarsely chopped
1 stalk celery, coarsely chopped
2 tablespoons olive oil
1 tablespoon butter

Preparation

Place leeks, onion, carrot, celery and water to cover in a large pot and season with salt and pepper. Bring to a simmer and cook until cooked through, about 20 to 25 minutes. Drain well and thinly slice.
Heat oil and butter in a large saute pan over medium heat. Add leaks, season with salt and pepper and cook for 10 to 15 minutes.