Part of me wants to say "pffft they left of the Carolinas" but I think that's just the craving for more of CaJohns Orange Chipotle BBQ sauce talking. It's nice to see the concept of regional BBQ styles hitting mainstream media. Pluse they provided a spiffy recipe for a KC style sauce.
Mix all ingredients in a large pot. Stir well.
Bring to a boil. Allow to boil for 20 minutes, stirring often. Simmer for additional 30 minutes.
Be sure spoon reaches very bottom of pot while stirring to prevent sugars from sticking or burning.