Generously season pork chops on both sides with salt and pepper; set aside.
In a large skillet over medium heat, add oil and when hot, place chops. Cook them until brown, about 2:30 to 3 minutes per side depending on the thickness.
Transfer them to a plate while continuing with the recipe.
In the same skillet, add onions and quickly sauté for 1 minute. Add red and jalapeños peppers, and cook for 1 minute.
Add pineapple and sauté for 2 minutes before adding ginger and garlic; sauté 1 minute.
Pour in pineapple juice and Kansas BBQ sauce. Stir well, bring the mixture to a gentle simmer; add brown sugar and ground cumin.
Return pork chops including any accumulated juices back to the skillet, spoon sauce over the meat, cover, and simmer for 5 minutes.
Flip the chops and spoon sauce over; cover and cook for an additional 5 minutes.
When time is up, transfer the meat onto a plate and add cornstarch mixture. Stir well until the sauce thickens, about 30 to 40 seconds. Serve immediately.