BBQ Pork - better than mine!

We had lunch at our friends' house today after their son's baptism. They had delicious BBQ pork sandwiches that tasted way better than mine. I asked Tamara how she did it, and she said the trick is to not cook the pork with the BBQ sauce. Add it at the end. And here's what else she did that made it so delicious and tender:

For every 3 lbs. of pork (they cooked a pork shoulder) cook it with:

1 C. of Ginger Ale
1/2 to 1 onion cut up

Cook overnight in crockpot on low. About 1 hour before eating drain liquid. You can throw out the onions, or leave them in depending on your preference, shred pork and mix with BBQ sauce. So forget my old post saying to cook your pork with BBQ sauce!
I don't have a picture of the pork sandwich I ate today, but here's a picture of a baby pig instead (taken on a preschool field trip last year)! So cute and innocent - never heard of BBQ sauce yet!