Cooking is a form of art and so is writing a recipe. Recipe needs to be concise, to the point and easy to understand. Writing a recipe is like presenting the preparation of a dish right from scratch so one must include the ingredients used along with the step by step method of preparation.
--Today, write a delicious recipe for something abstract.--
You can write a recipe for happiness, sadness, love, beauty or anything else that comes to your mind.
And when the time comes and I am lying on my deathbed in a stupor, semi-gone and all what remains is a book to entertain, the most sought after revelation and my dear fellow mortals you all will tear your hair out in utmost disgust and disbelief when the truth unfolds to reveal that you too had been tricked.