My wife makes something similar. She puts some brown sugar on top of the roast, adds some Coca-cola, ginger ale or similar and slow cooks. And drains it.
Then she shreds it up and adds sweet BBQ sauce.
Personally I like vinegar based (Eastern NC style) BBQ sauce on it but don’t have the heart to tell her.
It’s still good.
We use Scott's Sauce here at home, Every now and then we have to drive a couple of hours up into NC to get another case, but it is WELL WORTH IT!
Hot and tangy... just what some good pulled pork needs.
I am going to make a Jack Daniels based sauce for the pulled pork.