Sprinkle chicken with salt and pepper and place them in the bottom of your slow cooker.
In a small mixing bowl, whisk together honey, soy sauce, minced garlic, ginger, and vegetable oil. Pour over the chicken wings.
Cook on low for 6-8 hours.
Since the slow cooker adds moisture, this may thin the sauce. Pour sauce into a saucepan when the wings are done and bring to a boil. Add in the cornstarch and continue to cook until it thickens up. Pour the sauce back into the crockpot, and toss the wings to coat.