Crush graham crackers and set aside. Combine tofu with lime juice, lime zest, vanilla extract and agave in a small food processor or blender and whiz until smooth. Taste, adding more lime or sweetener as desired. Layer in a serving glass or dish, crackers... tofu mixture... crackers... tofu mixture. Garnish with lime wedges!
Chef's Notes: grape nuts and other cereals may be used in place of the whole wheat graham crackers.