Bratwurst is a type of German pork sausage that's been around for nearly 2,000 years. Brats are thick and absolutely bursting with sweet and salty flavor. They're a favorite in cold-weather climates. You'll often find downhill skiers lunching on hot grilled bratwurst on a hearty bun topped with sautéed peppers and onions. From sandwiches to passed hors d'oeuvres, bratwurst is a warm comfort food that won't let you down.