After you send the request for the recipe, wait until the book comes back. Then you have to read it to learn the recipe. The ingredients you need to buy in the village are honey, wheat and spice. Go to the market and buy those, then go back to the castle and go to the kitchen and click on the keg. Luffington Ale will be available to make. After you make it, you then have to click to get a drink. Hope this helps! 
