Chicken Casserole - cooking recipe

Ingredients

8 chicken breasts
1 c. mayonnaise
1 1/2 tsp. vinegar
2 large onions
2 cans cream of chicken soup
2 c. cooked rice

Preparation

Cook onions in rice.
Boil chicken until tender and cut into pieces.
Mix all the ingredients together using some of the chicken broth.
Bake at 425\u00b0 for 25 minutes.