1. Wash the potatoes, cut them into pieces, and steam them in a steamer. Steam for about 15-20 minutes. You can prick them with chopsticks in the middle. If they can be pierced to the end, it means they are well cooked.
2. Let it dry for a while, peel off the skins of the potatoes while they are hot, and press the potatoes into a puree with a spoon.
3. Add appropriate amount of whipped cream and stir evenly, not too thin.
4. Stir evenly with a silicone spatula.
5. Put the mashed potatoes into the piping bag and choose a suitable piping mouth.
6. Extrude your own desired shape.
7. Sprinkle blueberry jam on the mashed potatoes with a spoon.
