In a small glass bowl mix together the potatoes (I used a pampered chef small batter bowl), 1 tablespoon of oil, and the ranch dressing mix(note- only a 1/2 of a packet). Place bowl with the potatoes into slow cooker. If you don't have a bowl that will fit in your slow cooker with the chicken, don't fret, just make a packet out of foil.
Brown the chicken drumsticks in a skillet with a little cooking oil until browned on all sides, no need to cook the chicken completely. Place the chicken next to the potatoes in the slow cooker, add the bbq sauce on top of the chicken, and the water as well.
Place the lid on the slow cooker.
Set the slow cooker to HIGH for 4 hours.
Do not open the lid during the cooking time.
After cooking time is up, stir up the potatoes a bit.
When serving, spoon the extra bbq sauce onto the chicken.