The complexity of the universe observable at every scale is due to the iteration
, under the Aegis of the Flying Spaghetti Monster, of simple recipes
. The Flying Spaghetti Monster Himself is simultaneously the result of His Own Recipe, as well as Being His Own Recipe. In this sense, Pastafarianism stands in contradistinction to Intelligent Design, which attributes the obervable complexity of the universe to an arbitrarily complex Designer.
The question of what recipes are is of considerable philosophical interest. Nevertheless, I believe that the correct attitude towards them is exemplified by the Category Theorists of contemporary mathematics: it's more important to understand what recipes do, than to know what recipes are. And it may be that some recipes are in-principle phenomenologically operational, in the sense that His Noodly Appendage prevents us from understanding why His Recipes work, though He allows us to witness that His Recipes do His work.
In some sense, Pastafarianism is prefigured by Wolfram's New Kind of Science
, which attributes the observable complexity of the universe at every scale to the iteration of simple rules, as opposed to recipes
; however the rules apply to cellular automata, which are discrete systems. Recipes need not be discrete. It is fair to say that Pastafarianism owes Wolfram an intellectual debt; I hope that Pastafarians will follow Wolfram, not only in his prefiguration of the One True Religion, but in his notorious litigiousness, as Pastafarians seek to have the Holy Recipes taught in the science classroom.
While it is possible to point to various features of recipes, and to distinguish them from the discrete rules of cellular automata, it is ultimately unproductive to attempt to precisely define what recipes are, as these are revealed by His Noodlyness. And the attempt to inquire into the fundamental nature of Recipes may be insufficiently reverent.