The noodles did not rise well and the frying process took too long. According to the query on Dianping.com.

1. The dough has not risen well. Due to the lack of reconciliation with the dough in the early stage, the dough will be too hard and the surface of the baked cake will be rough.

2. If the frying process takes too long, the cake will be divided into two sides and must be heated evenly. If the operation is improper, one side will be crispy and the other side will be rough.