Barbecued Pork Loin

"I bought a pork shoulder roast and didn't have a recipe and needed something that i would have the ingredients for (except for cloves and cider vinegar which i substitued a bit of balsamic vinegar and the rest white vinegar). I reduced the sauce a bit more than it called for then i didn't have to keep basting the roast as it stayed on the top and was spread all over when i poured it from the pan. The sauce is fantastic and I will make it for Xmas. My first roast was a success and my Thai wife even liked it which is saying a lot as she doesn't usually like meat heavy meals. I also put onions and red bell peppers in the bottom of the pan while it cooked but took it out when i put the sauce in for the last 1/2 hour."