Dear Cook’s Notebook: I am looking for a recipe that I lost. It was a pie crust recipe using oatmeal, unsweetened coconut and fruit juice. Any other sugar-free, flour-free crust would be great, too.

A highlight of my culinary year is my friend Matt’s Seder. Over the years, he has asked me to contribute. I’ve whipped up kosher-for-Passover spreads and pâtés, and have come to relish the challenge ...