Use the ... menu on any personal collection page to open it in edit mode.
Then you can:
Remove items from the collection using the close box a the top right of each recipe card
Edit the title and description
Choose whether the collection should be public or private
(If you've made a collection of favourites, we hope you'll share it as a public collection so that other users can enjoy those dishes too. Public collections appear on search results and on the Community Collections page.)
Don't forget to press the button to save your changes once you are happy.