Answer: by master chefs who have been trained in preparation of egg-based food items, in small patches so that foods spend less time in the TDZ
Explanation:
Batters should be prepared by master chefs that are already knowing how to make them because of the items that are going in it such as eggs and various flavoring materials that are used.
The preparation is not so quick because you must leave it a couple of hours.
The sunglight has nothing to do with preparation but after that, we should not keep in where to direct sunlight is.
Also, it should be made in small patches because a high and dangerous temperature zone is dangerous for it.
