Puerto Rican Chicken

Ingredients:

3 lb. chicken pieces
1 tbsp. salt
1 bay leaf
1 c. olive oil
4 tbsp. butter
1/2 lb. sliced onions
1/2 c. vinegar

Directions: 

Rub chicken with salt and pepper. Brown in olive oil. Arrange onions over chicken. Add butter, bay leaf and vinegar. Cover and cook until done over low heat.