Butterfly each breast and place in a large glass pan.
Combine sour cream, worcestershire sauce, cayenne, paprika, salt, pepper, marjoram, thyme and soy sauce and pour over chicken, making sure each piece is coated.
Marinate overnight.
Next day remove chicken from marinade, and shake off any excess.
Place a pat of butter in the middle of each chicken breast and roll up.
Roll in bread crumbs and fit snugly in an 8-inch square baking pan.