Creamy Zucchini Soup

2 tbsp butter
1 med onion, chopped
2 med potatoes, peeled
1 lb zucchini, peeled and sliced (2cups)
1/4 c. parsley
3 c. chicken broth
1 c. plain yogurt
2 tbsp lemon juice
1/2 c. chopped chives
1/2 tsp pepper

In 3 cups chicken broth and butter, boil onion and zucchini and potatoes until tender. Puree these when done, and then add remaining ingredients. Garnish with chives. (I usually stir in some sour cream or extra yogurt)