Chef John’s Mushroom Gravy

Description Mushroom sauce can be done with any type of stock, but I used beef stock here since I’m going to be serving with meatloaf. Ingredients ¼ cup butter 1 (16 ounce) package sliced mushrooms salt to taste ¼ cup all-purpose flour, or as needed 1 quart beef stock 1 pinch ground black pepper to … Read more