1, ingredients: 150 grams of mashed yam, 200 grams of flour, 1 egg, 10 grams of milk powder, 20 grams of sugar, 3 grams of yeast.

2, will be washed and scraped yam skin, cut into hobnail block plate, on the pot on high heat steaming about twenty minutes until the yam is soft and cooked.

3, take out the steamed yam and crush it into a fine yam puree, then beat an egg into it, then add sugar and yeast and mix well.

4. Then add the plain flour and milk powder, and mix with a spatula to form cotton wool. The milk powder will give a creamy flavor to the finished product, but if you don't have it, you can omit it.

5, and then switch to hand kneading into a smooth and soft dough, because the yam contains different moisture, kneading process, if there is a particularly sticky hands on the situation on the appropriate add flour to adjust.

6, take out the kneaded dough with a rolling pin to roll into a thickness of about 0.5 centimeters of the large cake.

7. Use a mold or a small round cup to press out small round cakes on the pastry, re-knead the edges, roll out and press out small round cakes again.

8: Put all the pressed cakes in a warm place and let them ferment until they swell and get bigger.

9, the pan does not need to put oil, will be the embryo of the pancake in order to discharge the pan, turn on the low heat repeatedly until both sides of the browning can be.