Preheat the oven to 350 degrees.
Add extra virgin olive oil to the dutch oven and preheat over medium high heat.
Roughly chop 1/2 cup of pineapple (or drain a can of pineapple chunks).
Chop 1 medium onion.
Combine pineapple chunks and onion with 1 cup of your favorite BBQ sauce.
Remove any excess fat from the pork roast. A little fat is okay.
Cut the pork roast into large chunks. About 6 chunks for a 2.5 pound roast works great.
Sear all sides of the pork roast in the heated dutch oven. About 20-30 seconds per side.
Add the BBQ mixture to the pork chunks and thoroughly coat each piece.
Add the lid to the dutch oven and place in the oven for 2 hours.
Carefully remove the dutch oven from the oven and remove the lid. Using 2 folks, shred each chunk of pork. The meat should shred easily and fall apart. Shred to your liking (either leaving big chunks or shred to thin strips).
Using a wooden spoon or silicone spatula, carefully run the spoon along the sides of the dutch oven to include any charring that may have occurred during cooking. There's great flavor in that char!
Serve immediately or transfer to a dish and refrigerate for later.