In a small bowl mix, soy sauce, honey, hoisin, five spice blend, brown sugar, red pepper flakes, garlic, ginger, red food coloring (optional) and set aside.

Cut the ribs between the bones, every 2 bones.

Place ribs and marinade in an 8 quart slow cooker. Cook on low for 6 hours.

Remove ribs and place on a sheet pan lined with foil. Toss the cornstarch into the slow cooker with the marinade and stir, baste the ribs all over with the marinade from the slow cooker.

Place under the broiler for 5-6 minutes or until caramelized.

Garnish with sesame seeds and green onions and serve!