What's wrong with the rough internal structure and uneven texture of the cake?

1. The mixing process sequence is improper, some raw materials are not mixed and dissolved, and baking powder and flour are mixed unevenly;

2. The proportion of sugar and oil in the formula is incorrect, the moisture is insufficient, and the batter is too dry;

3. If the furnace temperature is too low, the sugar should be fully dissolved. It is generally recommended to use powdered sugar for easy operation.