Choose mushrooms with large caps. Brush mushrooms cleaning well. Remove caps from stems, reserving caps. Melt butter in sauté pan and add mushroom stems, onion, shallots, if using. Sauté until onions are transparent.
Remove from heat and stir together bread crumbs, onion and garlic powder and parsley. Add enough breadcrumb mixture so that mixture is no longer soupy. Stuff mushrooms caps and sprinkle pressed-in stuffing with paprika.
Submitted by: Marett Seymour