Place chicken in the bottom of a large (6- to 7-quart) slow cooker.
In a large bowl, mix together raspberry jam, adobo sauce, minced jalapeño, apple cider vinegar, and lemon juice. Pour over chicken.
Cover and cook on LOW for 3 to 5 hours or until chicken is cooked through and tender, but not dry.
Remove chicken to a plate and use two forks to pull it into chunks/shred.
Pour raspberry sauce from slow cooker into a medium pot and add chicken back to slow cooker.
Season chicken with salt and pepper, to taste.
In a small bowl, stir together cornstarch and water until smooth.
Set pot of raspberry sauce over medium-high heat and bring to a boil.
Whisk in cornstarch slurry and cook for 1 to 2 minutes or until thickened.
Pour desired amount of sauce over shredded chicken; stir to combine (leftover sauce can be drizzled on sandwiches or used as a dipping sauce).
Serve chicken on slider buns topped with slices of Brie & optional bacon