On your Events dashboard, select the event or events for which you'd like to pull a shopping list. You'll just want to click on the check box at the left side of each event.

Then click on "Generate Print" at the top right and then on "Shopping List".

You'll be directed to the shopping list. Feel free to change its name and description by clicking on the pencil icon at the top right, or to delete it by clicking on the trash can icon next to it. You may also expand or collapse the items on the list to show or hide their details.