D&D are the owners of both Angelica and Crafthouse which sit in Trinity Leeds and in addition to this they also own a fair few restaurants and bars in London (hence the name). They market themselves as a more upmarket bar and restaurant with the food somewhere inbetween fine and casual dining.
As with many large restaurants and restaurant groups they have a sommelier or two or three... their job is to pick and chose the wines to serve in the restaurants and bars (I'm probably teaching a few of you how to suck eggs but bear with me). D&D's sommeliers have gone a little further and were sent away to vineyards in France to create a special 'D&D Blend'. After much testing, arguing, disagreeing, feedback from the wineries they finally settled on one white and one red.