In 2018 the Pieathalon was a new-to-me event. I have since participated in the 5th and 6th Annual Pieathalon which is coordinated by Emily of Dinner is Served 1972 . Both years were a ton of fun. So, when she emailed to see if I were interested in participating in the 7th annual pieathalon, I was in! Since this whole Pieathalon thing is only once a year, I'll share the rules with my readers. 1. Pick a pie recipe from a pre-1990 cookbook. 2. Email it to Emily. 3. She assigns it randomly to another pieathlete. 4. We bake. 5. We post. 6. We share. Today's the day! Get ready for some fun retro pie recipes. Kelly of the Velveteen Lounge submitted the Lattice Pineapple Pie for swap and that's the one I received. Kari at The Nostalgic Cook received the Lemon Pie Reliable that I sent in; I can't wait to see how it turns out. Let's get this party started! The #7thAnnualPieathalon Line-Up Dinner Is Served 1972: Betty Crocker Sombrero Pie ...