Add onions to the stoneware liner. Place pork on top, sprinkle with salt & pepper, to taste. Add broth, cover & cook on low for 8 hours or until meat falls apart.
Remove pork from slow cooker. Trim all fat & muscle tissue. Using 2 forks, or your fingers, shred (pull) pork.
Using a large spoon or ladle, skim the fat from the cooking liquid. Add remaining ingredients to the stoneware liner and mix well.
Return pulled pork to slow cooker and season with salt & pepper to taste. Continue to cook on low for 1 hour.
Pile pulled pork onto toasted sesame buns and top with fresh slaw.