Mustard Sauce

Here’s a simple mustard sauce you can use not only with beef (like the Herb-Crusted Grilled Beef Tenderloin) but also with grilled pork, poultry, and even seafood. The whole mustard seeds add crunch. Yellow mustard seeds are the most common, but to add interest and color, you could use a blend of yellow, brown, and black—the last are available at Indian markets.