1Prepare mac and cheese according to the directions on the box and allow to cool slightly. Place 6 oz of ground beef into the Stufz and press it to form a cavity for the mac and cheese. Fill the cavity about ¾ full of mac and cheese. Form the remaining 2 ounces of ground beef into a patty to mold to the top of the Stufz and press to seal. Season burger with salt and pepper.
2Preheat grill to medium high or about 550F at the GrillGrate surface. Place burgers on grill and close lid. After about 5 minutes open grill and see if the burgers are ready for the 45 degree turn to get those awesome sear marks. After about another 3-4 minutes the burgers should be ready to flip. Flip the burgers and cook for 3-4 minutes before giving the final 45 degree turn. After the final turn, you should begin to temp the inside of the burger. Stuffed burgers are a little different and you probably will not get a good medium rare unless you are OK with some of the filling being luke warm. Keep in mind you do not want to temp the center of the burger for doneness but try and keep the thermometer in the meat and not in the filling. We like to pull ours once the meat is about 145F-155F depending on the filling.
3Remove from grill and serve with a light salad. Trust us this burger is a meal on its own!
PRO TIP: Try flipping your GrillGrates over and cooking the burgers on the flat back side.