Tropical Ice Cap
["1 1/2 c. milk", "6 oz. frozen tangerine concentrate", "1 1/2 c. cube fresh pineapple", "1 (8-inch) banana (optional)", "6 to 7 ice cubes", "orange slices"]
["Combine first 5 ingredients in blender until thick and smooth. Makes 1 quart.", "Garnish glasses with orange slices."]
["milk", "concentrate", "pineapple", "banana", "orange slices"]