Cook chopped bacon pieces until crisp and then remove to a plate.
Cook chopped onions in the bacon drippings - or use olive oil if not using bacon. Lightly cook just for a couple minutes.
While the onions are sautéing, add the carrots and green beans to the slow cooker, and then scrape the sautéed onions over them.
Season skinned chicken with spice rub (or salt and pepper) and brown it in the remaining drippings on both sides for a few minutes each side.
Transfer the chicken to the crockpot and layer the potatoes over the chicken.
Mix together the chicken broth and spices and pour over the layers in the cooker.
Cover and cook on high for 4 hours or low for 7 to 8 hours.
Transfer chicken and vegetables to a platter and cover with foil to keep warm.
Combine the cold water and cornstarch/potato starch until smooth and add to the drippings in the cooker, cooking on high for 15 minutes (or transfer all to a small saucepan for a couple minutes for thicker gravy in less time).
Pour some of the gravy/au jus over the chicken and vegetables, sprinkle with the reserved bacon and pass more gravy with the platter.
Notes
*You can use sweet potatoes, peeled and cut into large pieces. If you'd like them firmer, add them after the first hour of cooking.**To use boneless, skinless thighs: cook on low for 5-6 hours or high for 2-1/2 to 3 hours or until vegetables are done.***You can also use arrowroot powder, though you'll need to increase the amount to 3 to 4 tablespoons.HOW TO COOK IN A DUTCH OVEN: Make the slow cooker recipe just as it is written, but put the ingredients in a Dutch oven instead of the slow cooker. Bake at 350 degrees for for an 1 to 1-1/2 hours.HOW TO COOK IN AN INSTANT POT: Turn 6-quart Instant Pot on sauté mode to high. Cook the bacon until crisp and remove (or use olive oil). -Season chicken with salt and pepper or spice rub and brown the chicken in the IP on both sides, a few minutes each side. -Set the chicken aside and sauté the onions a bit before adding the broth, scraping up any brown bits from the bottom to avoid the burn notice. -Layer carrots and potatoes over onions and then add the browned chicken on top. -Set IP to high pressure and cook for 10 minutes for bone-in chicken (6 minutes for boneless) and quickly release the steam. Remove the lid, add the green beans, and secure the lid again. -Set the cooking time for 1 minute at high pressure. The Instant Pot will come to pressure again, and end the cooking cycle. Quickly release the steam and remove the lid. -Continue like slow cooker recipe, removing food to a platter and making au jus in the pot using the sauté setting - switch off once it's thickened some.