I'd 100% buy and try it. I see absolutely no problem with Yorkshire Pudding in beer. Using old bakes as part of the grist increases the amount of easily breakable sugars on the brew thus increasing the final alcohol content. The baked eggs and milk can increase the flavor smoothness and bring some nice aromas to the beer.
I've personally tried many weird "bakery beers" including cinnamon rolls, and strawberry jam doughnut. Some were good choices, others big oofs. I'd be happier if there was a good brewery behind, and not Aldi's Yorkshire Pudding Brewery tho, NGL.
