Flay of 1. general violet potato, stripping and slicing, go up next boiler evaporate is ripe. 2. pounds violet potato into mud, issue boiler to break up again fry, join right amount condensed milk and candy, break up mix even can. 3. is gone to 100 grams add 90 grams in crystal pink clean water agitate comes sufficient confluence. 4. joins 250 grams maltose, rejoin 90 grams warm water, sufficient mix is even. Evaporate of conflagration of the boiler on 5. 15 minutes. 6. skin takes the advantage of the condition of hot not very hot hand to leave rapid operation. (skin: Stuffing ＝ 7:3. With 50 grams the mould is exemple, the skin is 35 grams, stuffing is 15 grams) . 7. package is nice put a pattern rapidly. Glittering and translucent get rid of shows 8. finished product, mouthfeel Q is played, the mouthfeel after cold storage is much better.