> The above recipe is for playdough. It is not intended to be eaten, and while I can't say for sure, I believe it would taste rather disgusting. Yet it consists entirely of food products.
>
> Is it food?

I would like you to meet my good friend, Mr. Fallacy of Composition.

A diamond is made of carbon.
A piece of coal is made of carbon (some coal may be up to 98 percent carbon, and diamonds are almost purely carbon).
Therefore, diamonds are coal.

Uh, no. The elements that make up an object are not the sole factor in determining what that object is -- the arrangement and composition of the elements plays a large factor. That something consists of "food products" does not mean it food.

Note that in the recipe you also cook the ingredients, thus altering their basic composition.

Stephen