01 -
Lightly coat the slow cooker with non-stick cooking spray or oil to facilitate easy cleanup.
02 -
In the slow cooker, thoroughly mix Dijon mustard, stone-ground mustard, honey, minced garlic, salt, and ground black pepper until well blended.
03 -
Place the chicken breasts and thighs into the slow cooker, tossing gently to evenly coat all pieces with the honey mustard mixture.
04 -
For intensified flavor, refrigerate the chicken and sauce mixture in a sealed container or zip-top bag for several hours or overnight before cooking.
05 -
Set the slow cooker on low heat and cook for 4 to 6 hours or on high heat for 2.5 to 3 hours until the chicken reaches tender doneness.
06 -
Mix potato starch with cold water to form a slurry and stir into the hot sauce in the slow cooker. The sauce will thicken rapidly, creating a glossy coating.
07 -
Ladle the honey mustard chicken onto plates and spoon the thickened sauce over each serving while hot.