What does the phrase easy as pie mean?

"Easy as pie" is a common English phrase that means something is very easy to do. It is often used to describe a task that is simple or straightforward, and does not require much effort or skill. For example, someone might say "Baking this cake was easy as pie!" to indicate that it was a simple recipe to follow and did not require any special techniques. The phrase can also be used more figuratively to refer to something that is not challenging or complex. For instance, someone might say "Solving that puzzle was easy as pie!" to indicate that it was not a difficult puzzle to solve.