1. Combine lemon juice and water in small bowl with olive oil.
2. Set aside 2 tablespoons chickpeas for garnish.
3. Process remaining chickpeas, garlic, salt, cumin, and cayenne in food processor about 15 seconds.
4. Scrape down bowl with rubber spatula.
5. With machine running, add lemon juice-water mixture in steady stream through feed tube.
6. Scrape down bowl and continue to process for 1 minute until hummus is smooth and creamy, scraping down bowl as needed.
7. Transfer hummus to serving bowl, sprinkle reserved chickpeas and cilantro over surface.
8. Cover with plastic wrap, and let stand until flavors meld, at least 30 minutes.
9. Drizzle with olive oil and serve.