Crouton Chicken by Crouton Chicken Ingredients- Boneless Chicken, Croutons (any Flavor), Mayonnaise First step- preheat oven to 350 Second step- spread mayonnaise on top of thawed chicken ( you can't taste it, it just makes the croutons stick) Third step- put croutons in a ziploc bag, smash them, until they are very little, spread them over the chicken. Cook until chicken is done all the way.