old cheese rinds from the back of the fridge - what to do with them?

What great ideas. I'll remember them for next time, though maybe with some milder cheese.

I don't think I expressed the true nature as to how stinky these are. I think I'll need to make a 200 gallon soup if I'm going to add a shaving of rind to it, or learn how to extract a micro-sample with microscope and lasers. And that's coming from someone who loves stinky cheese.

In the end I went with this old recipe I had written down long ago. I don't know where the recipe came from, but it looked sensible: shred the rinds, then cover with alcohol - brandy in my case. Stir daily until becomes a spreadable cheese, then put at the back of the pantry 'till needed. I'll have to 'water' it down quite a lot, but apparently between the brandy and the good mould in the cheese, it's impossible for nasties to grow in there, so it should keep well at room temp for a few decades.

How could I have forgotten this??? http://www.simplyrecipes.com/recipes/toasted_parmesan_rinds/

I added them to my parmasan rinds and a cheese rind broth. My first use was to use the broth to cook asparagus. I put asparagus in a single layer in a frying plan and added the broth up to 1/3 the height of the asparagus as per Patricia Wells Food 52. The best ever!!

How timely - I'm making Marcella Hazan's genius tomato sauce, and just threw my parmesan rind in the pot. I've heard parmesan is a natural source of MSG, so I think it will take it to a new level of "unami". It certainly smells delicious!

I love fromage fort. Blend up the cheese bits with garlic, dry white wine, salt (if needed) and pepper to make a paste. It's like grown up (and infinitely tastier) cheez whiz!

Don't forget Jacques Pepin's 'fromage fort:' http://www.foodandwine.com/recipes/fromage-fort

It is not necessary to go to the extra trouble of making Parmesan broth; just freeze clean rinds until you are ready to use them and toss them into soups, risotto, stews, etc. during the simmering or braising process.

For rinds, just follow these instructions to make cheese broth to add to soup, pasta, risotto, etc.
https://food52.com/blog/10334-how-to-make-parmesan-broth-6-ways-to-use-it

In the future freeze them. I love to add to soups !

Two tips I learned from TV, despite food TV shows have gone from bad to worse, like those reality shows.

First from Alton Brown. Simply put all the grinds into a (powerful) blender, go. You have a delicious cheese spread. Haven't tried it. But figure if they ended up too dry, you may have to add some olive oil to provide some liquid.

Second from Giada De Laurentiis. Simply use all your grinds when you make a large pot of spaghetti. Or macaroni and cheese for that matter. The combination of flavors is usually a plus, and, not a lot of people can tell at the end.