Add pork ribs to a crockpot.
Cut into pieces and layer on top of one another, if necessary.
Add in onions, garlic, water and a splash of BBQ sauce for flavor.
Heat on high for 4 hours or low for 8 hours.
After 4 hours or 8 hours is up, preheat oven to 400F.
Remove ribs from crockpot and place on a baking sheet.
You can transfer the onions too, if you'd like.
Be sure to allow liquid to drain, so the ribs have a chance to dry off a bit.
Cover both sides with remaining BBQ sauce.
Place in oven and bake until the BBQ sauce begins to caramelize, roughly 10-15 minutes.