Ribs with homemade BBQ sauce

4 lbs pork ribs cut into sections

1 cup ketchup

1/2 cup molasses

2 tbsp apple cider vinegar

2 tsp chili powder

1 tsp sriracha 

2 tsp garlic powder

1 tsp kosher salt

1 tsp pepper

Cook in the slow cooker on low for 8 hours.