Easy as Pie?

So what the heck does saying something is "as easy as pie" mean? This phrase doesn't really make any sense. If I said something was "tasty as pie" then everyone understands, but what is so easy about a pie? It's not talking about making a pie cause if I had to make a pie the only part I would know how to do is buy a pie crust. Maybe people mean as easy as eating pie? I guess that makes sense, as long as the pie isn't too liquidy, or too hot, or the last thing I'm trying to fit into my stomach at the end of a Thanksgiving meal. I guess people might mean something is as "easy as pi". But that doesn't make sense cause 1. I've only heard Americans use this phrase and they suck at math and 2. why wouldn't the phrase be "as easy as addition". I propose we never use this phrase again until someone can give an explanation for it. Dropping it from our speech should be a piece of cake...

Spinach

Spinach, I have a question. How can a vegetable be so lazy in marketing itself? I mean your only competition in the leafy veggie category is lettuce, and you are way better than lettuce. Lettuce is just water, solid, green water. It has zero nutritional value. That's why it's called iceberg lettuce, cause they are made of the same thing. People can actually benefit from eating you, yet you allow lettuce to take over the salad and sandwich market. What's your deal? My recommendation would be to first get rid of your stems, those are annoying. Then hire a PR person to just blast lettuce's character. Make your customers hate lettuce and you'll be ruling the salad/sandwich market in no time.