At the start of 2015 I had had been toying with the idea of taking formal wine classes for a while and had indeed already completed several casual wine tasting courses. I finally decided to bite the bullet and enrol for the Wine and Spirit Education Trust (WSET) Level 2 Certificate in Wines and Spirits. There is a foundation Level 1, but it's entirely possible to go straight in at Level 2 if you already have a reasonably good knowledge of wine.
There are several accredited teachers in Ireland, which you can find listed on the WSET website, but when I did my research, one name was consistently mentioned again and again. I therefore found myself in the very capable hands of Maureen O'Hara from Premier Wine Training. The classes took place at night, over the course of approximately 8 weeks, lasting 2 hours per class. I paid €440 which covered all classes, textbooks and study materials, a set of tasting glasses and the exam itself.