diff --git a/app.rb b/app.rb
index 482ecd8..98209e1 100644
--- a/app.rb
+++ b/app.rb
@@ -347,3 +347,11 @@ get "/_cat/env" do
     end
   end
 end
+
+get '/_cat/cookies' do
+  stream do |out|
+    cookies.each do |k, v|
+      out << "#{k}=#{v}\n"
+    end
+  end
+end