This is the most popular Greek soup. Its richness and lemony flavor is very satisfying and is a wonderful addition to any Greek meal. 1 recipe Avgolemono Sauce (page 21) In a 4 quart pot, sauté onion and celery in Clarified Butter or oil until onion is browned. Add broth, rice, carrots, chicken and HUMMUS SPICE. Bring to a boil. Reduce heat and simmer, covered, 15 minutes until rice is tender. Meanwhile, prepareAvgolemono Sauce. When rice is tender, pour Avgolemono Sauce slowly into soup, whisking continuously. Simmer 10 minutes longer.