Makes 12 servings
Place rice in large bowl. Pour 4-1/2 cups warm water over rice. Set aside and soak six hours or overnight. Pour into blender jar and process until smooth. Strain mixture through a fine mesh sieve. Return to blender, process again. Strain mixture into pitcher through a clean dampened dish towel or Cheese cloth. Rinse blender, return mixture to blender; add Sugar and vanilla. Process until combined. Refrigerate until chilled. Serve over cracked ice.