1. Prepare all the ingredients.
2. The kiwi fruit is peeled and sliced and pasted in the inner wall of the glass.
3. Peel the pineapple and banana and cut into pieces.
4. Put half a banana and pineapple in the food processor.
5. Beat into delicate pineapple banana juice.
6. Put half of the cooked purple sweet potato and the other half of the banana into the food processor.
7. Beat into delicate purple sweet potato banana juice.
8. Pour the purple sweet potato banana juice into the bottom of the cup, and spoon the pineapple banana juice into the cup slowly. Decorate it with Oreos.
