Oster CKSTGRFM18 Folding Griddle for $19.99.  Shipping is $5.00 for a total of $24.99 shipped.  Here is a screenshot for your reference. It is dishwasher safe and fully immersible, has a 9" x 20" non-stick cooking surface, removable adjustable temperature control and grease tray, and folds for storage.  Most places have it for about $45.