Get out your compass and cook book, Pi Day (3/14) is almost here. Not many mathematical constants have their own holiday, but not many of them rhyme with our favorite dessert. So we're here to celebrate this one in style!

We're teaming up with Serious Eats to bring you the most serious Pi Day challenge ever. Share your best pie recipes for a chance to win an iPad engraved with the first 314 digits of pi, and fully loaded with the entire collection of Instructables ebooks currently available. Other winners will snag nifty prize packs to show their love of both pi and its tasty homophone. So dust off your protractors and pie plates, and get in the kitchen!

Be sure to act fast because this is a quick contest, closing on March 20th. So get going and make a delicious pie! 

Ready to start? Click here!


Multiple entries are accepted, but each entrant can only win one prize. Contest is open to international entries. Contest closes for entries at 11:59pm PDT, Mar. 20.

The Serious Eats Pi Day Pie Contest is closed.

9 PRIZES

First Prize (1 winner)



One First Prize winner will receive an iPad laser-engraved with Serious Eats and Instructables logos, "First Prize Pi Challenge", and 314 digits of pi. (Thankfully there's a ton of space on the back to engrave!) Also included is an Instructables Prize Pack which includes a one-year Pro membership, Robot t-shirt, and more.

Second Prize (5 winners)




Three Second Prize winners will receive a Pi plate and a Pi apron. Also included is an Instructables Prize Pack which includes a one-year Pro membership, Robot t-shirt, and more.

Runner-Up Prize (5 winners)



Five Runner-Up Prize winners will receive a Pi t-shirt and a Pi ice cube tray. Also included is an Instructables Prize Pack which includes a one-year Pro membership, Robot t-shirt, and more.
HOW IT WORKS

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Mar 1, 2011 and Mar 20, 2011 (11:59pm PT).

Enter

Upon publishing your Instructable you'll see checkboxes for open contests. Select Serious Eats Pi Day Pie Contest. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.

Accepting

Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.

Voting

Instructables members can vote for an entry during the contest plus 3 days after the contest closes.

Judging

A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.

Winners

When the winners are decided they will be announced here on the contest page. All entrants will be notified when this happens.