After book 10 came out this week, I went to make one (I'm a wood worker and had the recipe). Guess what? It got changed to a cooking recipe instead. No reimbursement or anything. I had just sold another copy of the recipe I could have given to my wife (a cook) too.
I asked in /advice and was told it's made by a woodworker. Someone then spoke up and said he would make it. I asked how much and after examining prices he said 6s. I gave him 10s and said keep the tip. It's a one charge item, stacks (so says the woodworker, I only got one) and it lasts about a minute (forgot to time it). I made a bunch of eggs and onions since they are used in a quest. This was on the Firefoot server, beta.
Yeah certainly helps to find someone to make you a stack of them. What I do when I get them, is ask in ooc or whatever if anyone wants to share because they seems so rare and most peeps can't afford them now.