If you are buying head-on shrimp, you'll need to buy about 1 1/4 to 1 1/2 pounds to end up with 1 pound after the shells are removed.
If you can't find seafood stock, just substitute chicken stock and it will be just fine.
Substitute Quick Grits if you want them done a little quicker! Just follow the directions on the package.
Gruyere cheese is creamy when melted and a slightly sharp. Try some sharp or mild cheddar cheese if you prefer, or no cheese at all.
I always think its best if you grate your own cheese, but if you are crunched for time, or just prefer, use some pre-grated cheese.
Many commercial creole seasonings and stocks contain salt, some have quite a bit. This recipe was developed a stock that contains salt and a creole seasoning that does not contain salt. Whatever you use, make sure you taste while cooking before adding salt so you get it the way you like it.