French fries are POTATOES??

So, I was asking the boys what they wanted for dinner tonight, we decided on grilled cheese and french-fries. Morgan got a funny look on his face and asked me where I was going to get the fries. I told him that I was going to make them. He said that I could not make them because french fries are made in a factory. I told him that anyone could make them because they are just made out of potatoes. He got the funniest look on his face and said "French Fries Are Made Out Of Potatoes??? He did not believe me, so I had to show him how people make french fries. Wyatt couldn't believe that all this time he was eating potatoes and not even complaining. I was laughing so hard that my diet dr. pepper came out of my nose.