Coat the diced chicken breast in flour.
Melt butter in a pan over medium heat and brown the chicken without cooking through.
Add the thinly sliced onion and cook until slightly softened.
In a bowl, mix honey, light soy sauce, brown sugar, and minced garlic until combined.
Add the browned chicken and onions to the slow cooker.
Pour the sauce mixture over the chicken and stir to coat.
Cover and cook on high for 2-3 hours until chicken is tender and fully cooked.
Serve hot with rice and vegetables for a complete meal.