Ingredients:
2 Tablespoons butter or olive oil
1 leek, chopped
2 stalks celery, diced
1 potato, peeled and diced
4 cups low sodium chicken broth
2-3 large handfuls fresh spinach
Heat the butter in a large saucepan. Add the leek, celery and potato. Stir and put on the lid. Sweat for 10 minutes, stirring a couple of times. (low heat so the leeks do not burn)
Pour in the stock and cook for 15-20 minutes until the potato is soft.
Add the spinach and cook for a couple of minutes until wilted. Use a hand blender to blitz to a smooth soup.