Can you picnic or is there somewhere to buy food??

They sell food and they do allow you to bring food and coolers to have a picnic or party

We have been to Blessington in the summer for a school Field trip and yes we were allowed to bring our own lunches... Although there is a small snack shack located a little close to the entrance of the farm. To my knowledge it only sold ice ceam/popsicles and chips. Not sure if that menu stayed the same, but that was the only thing that was offered at that time. Coolers were definitely allowed, and there is absolutely no littering allow because of the Chickens that roam free through out the farm. There are also a couple of picnic tables under a nice shaded area of trees.