This recipe makes 2 large bowls or 3 smaller ones. I keep the recipe in these increments since it equates to one tray of mushrooms and the better part of one carton of chicken broth. I'm also only cooking for 2 or 3 most often. That said, you can double or triple the as needed, to feed more.
Be sure to read the "Cook's Notes" in the original post, for more tips, options, substitutions and variations for this recipe!