4 medium zucchini (washed and sliced)
1 large leek or 2 small leeks (washed and sliced)
2 oz butter
1 carrot (peeled and sliced)
1 potato (peeled and sliced)
6 cups chicken stock
salt and pepper to season
1/4 cup whipping cream
parsley (to garnish if desired)
Prepare the vegetables carefully. Leeks can contain dirt trapped between the inner layers of the vegetables, so it’s very important to wash them well. If you need some tips on how to wash and prepare leeks check out my recipe for potato and leek soup.
Wash the zucchini, then slice them skin and all. I find the outer skin adds flavor to this soup. Peel and slice the carrot and potato.
Melt the butter over medium heat in a large Dutch oven or pan.
Add the sliced vegetables and stir to completely cover them in butter. This coating of butter is important for sweating the vegetables and helping them to not stick to the bottom of the pan.
Cover the pot and cook over medium heat for 10 minutes to sweat the vegetables.
Shake the pot occasionally to prevent the vegetables from sticking. It’s important not to brown the vegetables, but merely to soften them in the steamy pot.
Add the chicken stock and season with salt and pepper to taste. You can use vegetable stock for this soup too if you prefer vegetarian recipes. I like the taste of chicken stock with the leeks, but the choice of stock is completely personal.
Bring the soup to a boil, then reduce the heat and simmer the soup for 20 minutes. Remember, gentle heat is very important for cooking soups.
When simmered enough, the vegetables will be fork tender. The trick to a nicely textured soup is to cook the zucchini and the leeks long enough to make them nice and soft before whizzing them with the blender.
Turn off the heat and allow the soup to cool slightly before blending it until smooth. An immersion blender works great, or else blend it in batches in a liquidizer.
Add the cream and stir well to blend completely. Reheat over a gentle heat without boiling.
Serve this soup warm or cold, and garnish with parsley if desired.