It doesn't count as one of your five-a-day, but this leek-infused tipple seems to be going down well with patriotic customers.
The Prince of Wales and the Duchess of Cornwall have been marking the national day with a church service and a visit to a music college.
A St David's Day Welsh breakfast was served at the European Parliament in Brussels as the First Minister made a speech in the same city.
The Prince of Wales has arrived in Merthyr Tydfil as part of his St David's Day visit to Wales.
Earlier today, he visited Llanelly House in Llanelli.
Eight hundred leeks have been presented to soldiers and friends of the Welsh Guards in a St David’s Day ceremony.
According to ancient legend, King Cadwaladr of Gwynedd ordered his soldiers to identify themselves by wearing the vegetable on their helmets in a sixth-century battle against the Saxons that took place in a leek field.
Youngsters in Cardiff said they were 'speechless' after meeting Prince Charles and Camilla this morning.
One told ITV Cymru Wales he was 'going to tell his grandchildren' about his unforgettable St David's Day.
The royal couple are in Wales for a day of celebrations to honour the Patron Saint.
The Prince of Wales and Duchess of Cornwall are in Wales for a series of celebrations to mark St David's Day.
This morning they attended the national St David's Day service at St John the Baptist City Parish Church and will shortly visit the Royal College of Music and Drama.
In his St. David's Day message, Opposition leader Andrew RT Davies says it's important that Wales looks back and looks forward.
St David’s Day will always remain a hugely significant part of Welsh culture and I hope as many people as possible find time to celebrate it.
We have a country of which to be immensely proud and as well as remembering our heritage today, we should also look to our future.
– Andrew RT Davies, leader of the Opposition
Assembly support for our bank holiday and honours system proposals this week was extremely welcome. We believe the contributions of people from all walks of life should be celebrated. In Wales and by Wales.
While the newly announced St David Awards go some way to achieving this, it is crucial that they are independent of government. We need a system which reflects and demonstrates honour bestowed by the Welsh nation and I hope – with consensus clearly emerging – this can be discussed further.