EZ Bake Oven

Challenge:

Do you like baking? Don't leave the oven on for too long!

Open the Deployment tab to start this challenge.

Solution:

The website for the challenge displays an oven with buttons for cooking various desserts:

The dessert of of interest is obviously Magic Cookies and clicking "Cook" starts a countdown:

Given the pretty clear clues that the challenge involved "baking cookies" I used Chrome's Developer Tools to view my current browser cookies and found an cookie named in_oven that looked interesting:

Cookie Name	Value
in_oven	eyJyZWNpcGUiOiAiTWFnaWMgQ29va2llcyIsICJ0aW1lIjogIjA5LzI2LzIwMjAsIDE5OjAyOjIyIn0=

Decoding from Base64 produced the JSON string: {"recipe": "Magic Cookies", "time": "09/26/2020, 19:02:22"}, which was the time (in UTC) I clicked the Magic Cookies oven button. Since the oven displayed 119+ hours remaining I subtracted 5 days from the start time, generated a new cookie, pasted it into Chrome and reloaded the page.

{"recipe": "Magic Cookies", "time": "09/21/2020, 19:02:22"} = eyJyZWNpcGUiOiAiTWFnaWMgQ29va2llcyIsICJ0aW1lIjogIjA5LzIxLzIwMjAsIDE5OjAyOjIyIn0=