Combine all of the ingredients in your blender, and puree until smooth.
Make the Banana Berry Daiquiris
To make one banana berry daiquiri: Fill a rocks glass with ice, then add ¼ cup of the the puree, 1 ounce of rum, and ½ ounce of the Cointreau. Stir well for about 30 seconds, so that the ice starts melting a bit. Garnish with your lime wedge, and serve!