Book a table after 5pm on Sunday 21st June   Beefeater is celebrating dads all over the country this Father’s Day by giving them a free steak on their special day of the year. There’s no better way to thank your dad with one of Beefeater’s deliciously tender steaks that are packed full of flavour and cooked to perfection.   Dads can tuck into a free 6oz* ‘Flat Iron Steak’ or upgrade to one of their favourite cuts when someone…