Waterford locals love their "blaa" – a soft bread roll introduced by the French Huguenots in the 17th century. Paired with dry-cured bacon, it's a real delight. To try one in Dublin, head to the Georgian kitchen-café of Hatch & Sons on St Stephen's Green. Go old school with rashers (strips of bacon), or take it upscale with spiced beef, rapeseed mayo, Coolea cheese and onion relish.