Chicken Casserole - cooking recipe

Ingredients

4 chicken breasts
1 stick butter
1 onion
1 box Pepperidge Farm stuffing mix (chicken flavor)
1 can cream of chicken soup
1 heaped up Tbsp. mayonnaise
3/4 soup can milk
1 c. chicken broth

Preparation

Boil chicken until done, about 30 minutes.
Remove from water. Let cool to touch.
Remove meat; separate into bite sized pieces. Simmer butter and onion together.
Mix soup, mayonnaise and milk together in a bowl.