Because It's National Pi Day

I made a Buttermilk Pi:


And I made it completely from scratch, using Alton Brown's pie crust recipe, a buttermilk pie recipe posted by Natalie Moore on the NPR website (originally posted in the Southern Living cookbook Country Cooking from 1974), and a Pyrex pie plate with a circumference of about 28.274 inches and an area (at the opening) of about 63.617 square inches. It's up to you to figure out the diameter of the pie plate.

Also to celebrate this most circular of days, the unofficial theme song of the holiday, by the "geek rock" group Hard N' Phirm.