In a pan or shallow dish, combine the marinade ingredients and whisk until well blended.
Adjust the flavor to your liking.
Unwrap the pork loin roast and place it in the prepared marinade. Turn to coat.
Cover the pork and marinade in the fridge for at least 2 hours, turning at least once.
Preheat your Traeger to 225*.
Remove the meat from the fridge and marinade and discard the marinade.
Using a sharp knife, score the top of the fat cap with a hatch mark pattern.
Season the pork all over with Smoke Junkie seasoning.
Insert a Meater probe in the pork and pair with the app.
Set the target temperature to 145*.
Place the meat in the grill and cook, following the Meater prompts, until the internal temperature reaches 130*.
Then turn up the heat on the Traeger grill to 400* and continue cooking the meat until it reaches just about 145*.
Continue following the Meater prompts for perfect cooking.
Remove the meat from the grill and tent loosely with foil.
Slice using a sharp knife and serve your marinated pork loin while hot and juicy!