Groupon: $10 For $20 Toward Food And Drink Delivery For New GrubHub Customers! There are lots of kosher eateries available with GrubHub in Brooklyn and Manhattan, please post the ones you know about in the comments! The $20 Grubhub voucher is valid for use nationwide. -Expires May 24, 2012 -Limit 1 per person. -New members [...]