If using frozen açaí purée, break it in a couple of places before you throw it into the blender.
Add frozen banana, mango, almond milk and agave syrup. Blend until perfectly smooth. If it won't blend, just add some more almond milk until you get a nice sorbet consistency.
Transfer into two bowls and top with garnishes of your choice.
Notes
*You can also use 4 tablespoons of açaí powder with 6-8 crushed ice cubes