hummus is pureed chickpeas with olive oil, a bit of garlic, seasonning and sometimes tahine (sesame paste) with lemon. There are many versions but its always made with chickpeas and olive oil. It's originally from lebanon/syria/palestine and later in israel and the rest of the world due to immigration and the media. you eat it with originally with toasted pita bread or you can dip carrot/celery or cucamber sticks in it as a healthy snack. Sometimes its served with falafel as a spread with lots of salad in a pocket of pita.