require 'scrubyt'
 
class RecipeScraper::Base
  def initialize(attributes = {})
    # snip setting instance variables from attributes hash
  end
 
  def data
    raise "Define in subclass"
  end
 
  def scrape_and_save
    xml =  data.to_xml
    # snip logic to iterate over the xml and persist 
  end
 
end
 
class RecipeScraper::SomeSpecificSite < RecipeScraper::Base
  def data
    @data ||= Scrubyt::Extractor.define :agent => :firefox do
      # snip scrapping logic
      # snip XML generation logic
    end
  end
end