Preheat oven to 175° C. Slice the chicken breast into 3 tenders. Mix the milk and seasonings in a small bowl. Grind the grissini breadstick to a powder in a food processor (I use my coffee grinder). Put the grissini powder in a separate small bowl. Add the chicken to the milk mixture and mix to coat well. Then one at a time, place each chicken tender in grissini powder and coat on both sides. Place the chicken in a glass baking dish and cook for 30-40 minutes, turning over halfway through. For the last 5 minutes, turn on the grill and grill for 2-3 minutes each side. Serve immediately.