I've been looking into a way for readers to put a search box on the blog. The obvious choice is to put Google Custom Search on the main page, but unfortunately the caveat is that Google gets to advertise on my site. So instead, I am including step-by-step instructions on how to search the blog from google.com.
Go to http://www.google.com
Type in site:adventuresineatingrealfood.blogspot.com followed by your search term
For example, if I wanted to search for "potassium sorbate", I would go to Google and search for site:adventuresineatingrealfood.blogspot.com potassium sorbate.