I’ve always been a big believer in grazing food at airports – small servings which people can eat & run or eat as they walk around. Not only does it reduce the amount F&B cuts into the shopping dwell time but it basically encourages people to spend more because you don’t notice a number of smaller purchases.
At JFK they sell cakes, confectionary & apples on sticks. Not only do they look positively irrestistable, they’re easy to grab and take to the gate – or take while browsing the shops.