Where does “over-egg” come from?

over-egg (English) comes from English over-egg the pudding — To embellish too much, to exaggerate.

over-egg (English): To overembellish

Definitions

Step	Language	Word	Meaning
1	English	over-egg the pudding	To embellish too much, to exaggerate

over-egg — Etymology, Origin & Word History | Etymology Explorer