Spray slow cooker with cooking spray
Combine pork & Dr. pepper in cooker & cover - cook on high about 4 hours
After 4 hours has passed combine remaining ingredients in large bowl & whisk to combine
Add this mixture to your slow cooker & allow to cook an additional 2-3 hours
*Note- after about 2 hours I kick the heat down to low just to let those flavors simmer a little longer but 2 hours is usually sufficient.
You know when it's done when the pork is falling apart as you try to remove it from the cooker