Preheat oven to 375˚F.
In a large mixing bowl, combine the ground chicken with the onion, garlic and 1 egg. Using the back of your hand, score the meat into quarters then score each quarter in half one more time, so you have 8 equal portions. Roll each portion into a shape similar to a hot dog.
Roll each log in flour, then whisk up the remaining eggs and dip the logs into the beaten eggs, then into the ground-up cornflakes. Place the chicken logs onto a sheet tray fitted with a rack. Spray each log with some cooking spray and bake for 30 minutes, until there is no visible pink remaining in the centers.