default.rb

# cookbooks/nokogiri/recipes/default.rb

stage "install_deps" do
  run_list "recipe[nokogiri::deps]"
end

stage "install_gem" do
  run_list "recipe[nokogiri::gem]"
end

deps.rb

include_recipe "yumrepo::epel"   # you can't do shit on rhel w/out epel repo first installed
%w{ libxslt libxml2 libxml2-devel libxslt-devel }.each do |pkg|
  package pkg
end

gem.rb

chef_gem "nokogiri"