Salt and pepper the chicken breasts. Heat a large skillet over medium-high heat and sauté the chicken for 4-5 minutes per side until golden brown. Remove and set aside.
In the same skillet, fry the chopped onions and minced garlic over medium heat for 2-3 minutes until soft. Add the tomato ketchup, tomato juice, soy sauce, honey, and finely chopped red and green chilli peppers. Simmer for 3-4 minutes to reduce the sauce.
Return the chicken to the skillet and pour the sauce over it. Transfer to a preheated oven at 180°C (356°F) and bake for 15 minutes until the chicken reaches an internal temperature of 74°C (165°F).