Low-Fat Potato and Leek Soup

By foodcanuck

3.0 / 5

20min

40min

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½ teaspoon unsalted butter
1 large white onion diced
2 ribs celery chopped
3 small leeks cleaned and thinly sliced
3 medium potatoes peeled and chopped
3 cups water or more as needed
3 cups 2% low-fat milk
½ teaspoon salt
½ teaspoon ground black pepper