Preheat grill or smoker to 300F
Prepare bratwurst by using a sharp knife to slice down the middle of the bratwurst to cut open forming a canoe or boat shape, but not cutting all the way through
In a mixing bowl, combine softened cream cheese, cheddar cheese, bacon, jalapeno, and seasoning, mix well to combine thoroughly
Using a butter knife or spoon, fill the bratwurst boat with the cream cheese mixture. Use 3 toothpicks to piece the brats on each side to hold the brat boat or canoe shape
Place the jalapeno popper stuffed bratwurst on preheated grill using indirect heat. Using a meat thermometer cook until the meat is about 160F, then move over to direct heat for 3-5 minutes to sear the bottom of the brats and finish cooking
Remove from grill and let rest for 5-10 minutes to allow to cool. Serve hot