Day before serving:

Score top and bottom of pork (about 3/4-inch deep) diagonally in a diamond pattern.

Coat pork well with sauce (use gloves). Cover well with plastic wrap; refrigerate overnight.

Day of:

Preheat oven to 275 degrees.

Remove plastic wrap; transfer pork to shallow roasting pan, or leave in the marinating dish (make sure there is sufficient space to hold the fat that cooks out). Cook uncovered, 7-8 hours. Meat can be pulled with tongs for serving. Service with mango jasmine rice and a nice salad or sautéed greens.

Use leftovers for pork sandwiches and taco meat.