here is an idea that might help with the eob shortage
create for confectioners a formula for them to make essence of blight using the brewing skill they get and the still in game. what would happen is that they could distill blighted essence down into essence of blight
depending on the tier of the confectioner and the tier of the blighted essence they number of essence of blight yield would increase. for example blighte dim essence could make 1 to 2 essence of blight and blighted pales give 3 to 4 and so on up the tier chain :)