Hot Yogurt Barley Soup

Name: Hot Yogurt & Barley Soup
Ingredients: 7 cups water; 1 cup pearl barley; 2 medium onions, finely chopped; 1 1/2 teaspoons dried mint; 4 tablespoons unsalted butter; 2 large eggs, beaten; 2 cups Greek yogurt; 2/3 ounce fresh mint, chopped; 1/3 ounce flat leaf parsley, chopped; 3 green onions, sliced thin; salt and freshly ground black pepper