Place potatoes and onion in a 3- or 4-qt. slow cooker. In a large nonstick skillet, heat oil over medium heat; add chicken. Cook until lightly browned, turning once, 3-5 minutes. Transfer to slow cooker.
In a small bowl, combine coconut milk, curry powder, garlic, bouillon, salt and pepper; pour over chicken. Cover and cook on low until meat is tender, 5-6 hours. Remove chicken to cutting board. Cut into slices.
Serve chicken and sauce with rice. If desired, top with cilantro, coconut, peanuts and chiles.
