Step 1

In a small bowl, stir together the garlic powder, onion powder, salt, and pepper. Sprinkle on both sides of the pork chops.

Step 2

Lightly coat a 5-quart or larger slow cooker with nonstick spray. Spread a thin layer of BBQ sauce over the bottom, then scatter the onions over the sauce. Add the pork chops, overlapping somewhat as needed. Spoon the remaining sauce over and in between the chops so that each has a nice amount of sauce on top. Cover and cook on LOW (this recipe does not work well on high) for 1 1/2 to 2 1/2 hours for boneless chops. (If using bone-in chops, your time could be up to 5 or 6 hours on LOW.) Pork chops can dry out easily, so be sure to check them early, especially if it is your first time making pork chops in the slow cooker. Remove the pork to a plate and cover with foil to keep warm while you thicken the sauce.

Step 3

To thicken the sauce in the slow cooker: Add the slurry to the slow cooker with the remaining sauce. Whisk to combine, cover the slow cooker, and set to high. Let cook, stirring occasionally, until the sauce thickens, about 45 minutes to 1 hour depending upon your slow cooker.

Step 4

To thicken the sauce more quickly: Transfer the sauce to a medium saucepan. Whisk in the slurry, and then cook on the stovetop over medium heat, stirring often until the sauce thickens, 5 to 10 minutes. (If your slow cooker insert is stovetop safe, you can remove it from the slow cooker and place it directly on the burner. Do not do this unless you are POSITIVE your insert is stovetop safe or it may crack).

Step 5

Serve the chops hot, topped with the thickened sauce and a sprinkle of green onion.