Made some alfredo tonight...
This... this was a low-key life changer.
I made the recipe as it was originally done and it was pretty much the simplest, quickest thing I have ever made.
You need noodles (I used a simple pack of the "fresh" noodles from the supermarket, it took literally 2 minutes to cook), a block of decent Parmesan cheese that you will shred about a cup of (gotta go with a block that you shred yourself, the pre-shredded doesn't work), and four tablespoons of butter. That's it.
You boil the noodles per the package (it was 2 minutes for the ones I used), then pull them from the water and put them wet in a large bowl with the butter. Add a small amount of the water you boiled the noodles in (like 1/3rd cup or so) and then slowly add in the cheese, mixing it as you go. That's it. You can add more pasta water if you want it saucier, but mix it until the cheese and butter melts into a sauce and you are good to go.
With the fresh noodles, it maybe takes 5 or 6 minutes and was a very tasty and filling meal. Totally worth it.
Why not?
I think there is something that is generally added to prevent it from sticking together if I remember correctly. You could certainly try it, but grating a cup of parm is not too difficult and it tasty.
Interesting. I buy the "good" pre-shredded parm from the fancy cheese section and it melts pretty well in my depression mac and cheese. I wonder if I just got lucky with the brand they sell where I shop.
Anti-clumping agents are generally put in pre-shredded cheeses, but you can get bags of shredded "melting cheeses" that don't have them though. In my experience that's only a supermercado kinda thing. That said your "good" pre-shredded could also be in that category.
The worst that happens is that it doesn't form an emulsion with the butter and the water. I say give it a try and see how it turns out. Just remember to report back here so we can all learn from your experiment!
All pre-shredded has cellulose powder as an anti-clumping agent. Even the "good" pre-shredded.
Now, cellulose powder won't keep things from melting, but it will make it harder to get a creamy sauce without a grainy texture.
As a note, if you want to help things along, add a slice of American cheese. The sodium citrate that makes the cheese smooth and pliable will keep your sauce from breaking. It also adds some creamy texture.
Pre-shredded cheese never melts as well because they spray a coating on them to keep them from sticking together in the package.
Pre shredded cheese is covered in starch or something similar to prevent clumping but also makes it harder to melt into a sauce. It’s still doable but the end texture will probably end up being lumpy
Pre-shredded cheese has preservatives in it that prevent it from melting properly