Stuffing stuffed chicken breast is an oven-baked chicken dinner made by filling thick boneless breasts with a buttery bread stuffing seasoned with onion, celery, sage, and thyme. I like this version because the filling stays moist without turning pasty, while the chicken cooks evenly around it. The main mistake to avoid is packing in too much stuffing: leave enough room to close the breast, and look for clear juices and a center temperature of 165°F before serving.
Add chicken broth to the stuffing gradually. Do not pack the filling tightly into the chicken, and verify doneness with an instant-read thermometer.