This smoothie in a bowl - cold, sweet, tart, with crunch from the granola - will fill you up, cool you off, and may have all kinds of nutritional and health benefits as well, if the many claims about the health properties of the acai berry are true. In Brazil, frozen açaí is often mixed with guarana (usually in the form of syrup - xarope de guarana), a fruit from the Amazon that is also thought to have many health benefits and which contains caffeine as well. Some people add other ingredients to their acai bowl such as milk, sugar, orange juice or pineapple.