1. Cook macaroni (or other shaped pasta) according to package directions. While your mac is cooking, let's make the special secret "cheese" sauce.
2. In a bowl or large measuring cup, combine the water, milk, and oil and whisk briefly. In another bowl, combine all of the dry ingredients together.
3. Heat a medium saucepan. Add the dry ingredients to the saucepan, and slowly add the wet ingredients, continuously whisking over medium heat. Once all of the ingredients are incorporated, turn up the heat until the mixture begins to bubble and thicken.
4. Keep whisking as the mixture thickens and bubbles; do this for 1-2 minutes, and then turn the heat down. Keep whisking. After a spell, your "cheese" sauce should be nice and thick. Turn the heat off, and cover your saucepan.
5. Drain pasta well when done, and return noodles to the pot. Add all of your "cheese" sauce to the noodles, and stir well.
If, after your first trepidacious couple of forkfuls, you find that this recipe doesn't beat the pants off of the dairy mac and cheese with which most of us are familiar, you must have done something wrong. Come over to my house. I'll show you how it's done.