Wash trim peel and roughly slice the celery. Peel and roughly chop the onion. Peel and finely slice the garlic.
Cut the ends off the leeks. Quarter them lengthways, wash them under running water and cut them into 1 cm slices.
Heat two tablespoons of oil in a large pan on a high heat, add all the chopped and sliced Ingredients and cook with for ten minutes or until softened stirring regularly.
Meanwhile, peel the potatoes and cut them in to one cm cubes
Put the sock in thick bottom pan brings to boil pour into the vegetable pan
Add the potatoes. Bring to the boil then reduce the heat to low and simmer for ten minutes with the lid on, than remove from the heat, blend with a stick blender.
Season to taste with sea salt and black pepper. Serve with western breads and butter.