Place the chicken, carrots, onions and garlic in the slow cooker. in a small bowl, combine water, peanut butter, soy sauce, ginger and chili flakes. Pour on top of chicken. Cover and cook on low for 4 to 6 hours (or high for 2 hours), or until chicken is cooked and veggies are tender.
Add peas and wine vinegar. Cover and continue cooking on low for 10 more minutes**. Serve with some chives and peanuts on top.
**Personally, I don't continue cooking. I just add the white wine vinegar, mix and serve.