Next, remove the brats from the slow cooker and wrap each one tightly with a piece of bacon. Feel free to use whichever flavor bacon suits your palate. Proceed by placing the bacon wrapped brats into the roaster and cooking them all the way through. When you are finished, serve the bacon wrapped brats with a beer sauce. To make the sauce, you’ll need 3 tablespoons of brown sugar, 4 teaspoons of cornstarch, 3 tablespoons of white vinegar and 1/3 cup of the beer broth that the brats simmered in previously. Bring the sauce to a boil and let it cook until it thickens. Afterward, spoon the sauce onto the brats and add any additional toppings of your choosing.