Whisk the sauce: In a bowl, combine honey, soy sauce, garlic, ginger, rice vinegar, sesame oil, red pepper flakes, and black pepper.
Load the slow cooker: Add chicken thighs to the slow cooker. Pour the sauce over the chicken, turning to coat well.
Cook low and slow: Cover and cook on Low for 3.5–4.5 hours or High for 2–2.5 hours, until chicken is tender but not falling apart to shreds (yet).
Shred lightly: Remove chicken to a cutting board. Shred into bite-sized pieces with two forks. Don’t overdo it—we want texture.
Thicken the sauce: Whisk cornstarch with cold water to make a slurry. Stir into the sauce in the slow cooker. Cover and cook on High for 10–15 minutes until glossy and slightly thickened.
Cook the rice in the pot: Stir in rinsed rice and chicken broth. Nestle the shredded chicken back into the mixture. Cover and cook on High for 40–60 minutes, stirring once halfway, until rice is tender and liquid is absorbed. Timing varies by cooker—start checking at 40 minutes.
Add veggies (optional): For peas or diced carrots, stir in during the last 10–15 minutes. For broccoli, steam separately or add in the final 20 minutes so it stays crisp-tender.
Finish and serve: Fluff the rice, taste, and adjust salt or heat. Top with green onions and sesame seeds. Serve hot and accept compliments graciously.