To make Pulled Pork: Combine salt, five-spice and pepper; rub into pork on all sides. In large rondo, heat oil over medium heat; brown pork on all sides. Pour plum sauce and stock over pork; cover and bring to simmer. Transfer rondo to 300°F oven. Braise pork, turning occasionally in sauce, about 3 hours or until tender and almost falling apart. Cool in sauce. Remove pork from sauce; pull apart into large shreds, discarding fat. Strain sauce.(Yield: 24 cups pork and 8 cups sauce)
For each serving, to order: Heat 1 cup Pulled Pork in 1/3 cup sauce. Heat 1 roll; fill with pork and sauce. Garnish with cilantro leaves.