Caching for a method in application helper

Hello All, I have a partial which is rendering on all pages of my web site. Which is using a method from application helper to get datas. Because of this partial loading in all pages making my site slow.Any one have a good idea of how to do caching for the method inside the application helper. Basically this method getting me three object arrays using find (:all) and using that I have to build a tree.

Thanks in advance

http://www.rubyinside.com/and-now-the-best-rails-action-and-fragment-caching-tutorial-ever-427.html