gistfile1.rb

module Chef
  class Recipe
    def search
      puts 'A'
    end
  end
end

module LocalSearch
  def search
    puts 'B'
  end
end

module Chef
  class Recipe
    include LocalSearch
  # undef :search
  end
end

Chef::Recipe.new.search

class Chef::Recipe
  def search
    puts 'C'
  end
end

Chef::Recipe.new.search

# => A
# => C