"Depcious to the extreme" 可以用 "extremely depcious" 来表示。这是一个常用的表达方式，没有特殊的起源。
下面是一些例句：
The cake was extremely depcious. (这块蛋糕美味极了。)
This soup is extremely depcious, what's the recipe? (这汤美味极了，你能告诉我做法吗？)
I couldn't stop eating, it was extremely depcious. (我吃不够，太美味了。)