You should include:
- An introduction to hook the reader in and explain what the instructions are for
- A list of 'ingredients'
- The instructions (don't forget imperative verbs and adverbs)
- A word of warning or encouragement at the end
You could use the following websites for
ideas:
http://www.lizaphoenix.com/encyclopedia/types.shtml
http://www.goodreads.com/topic/show/435499-mythical-dog-charries)
http://home.planet.nl/~artrako/Historie/Grijpvogels-EN.html