for beginners:
1. obey a cake recipe which tested
2. not too much dough exposed to air
3. preheat the oven with a flat fire (fire above and fire below)
4. Better low temperature (not too hot) and watch the cake every few minutes when baked, rather than the already high temperature use, er was burnt …
5. Good shape: depending on the material, intelligence carve with a knife, (clever in making the cake model) is not exposed to splashing water, etc