For the Chicken: Combine the cornstarch, salt and Bulgogi Spice in a one gallon zip lock bag. Add the chicken and shake to coat.
In a large cast iron pan, heat the oil over medium high heat until shimmering. Add the chicken in batches and cook until the coating is crisp and lightly browned, about 2 minutes per side. Be sure not to crowd the pan to ensure nice even cooking on each piece. Transfer the pieces to the slow cooker as they come out of the skillet.
For the Sauce: Whisk together the sauce ingredients in a medium bowl. Pour over the chicken in the slow cooker and cook on LOW for 1-1/2 to 2 hours or HIGH for about 45 minutes until the internal temperature of the chicken reaches 165 degrees.
Transfer the chicken pieces to a warm serving platter using a slotted spoon. Pour the sauce from the slow cooker into a skillet and reduce over medium heat until the sauce is thick enough to coat the back of a spoon. Adjust seasonings to taste adding additional orange zest or Korean chile to enhance the flavor.
Pour the finished sauce over the chicken and serve over rice.
Play with your food! Our recipe was adapted from Slow Cooker Orange Chicken by Patty Catalano. Mix it up with any of your favorite flavors in the sauce and in the seasoning!