Take the meat out of the refrigerator about 1 hour before preparation and bring it to room temperature.
Roast the pepper in the pan and then use a mortar. Add coarse sea salt, pestle and mix. Lightly oil the roast and rub it with the spice mixture. Finely chop the garlic and mix with the hot mustard. Rub the outside of the roast with it.
Preheat the grill to 150 degrees. If necessary, also use smoking chips. Do not sear the meat, but place it in the middle of the grill over indirect heat. After 90 minutes, turn the roast and grill for another 90 minutes. The core temperature for medium cooked meat should be 70 degrees.
A pepper sauce with green pepper goes well with it.