Long Island pies are crowd-pleasers, welcome at celebrations year-round. And the people who bake them best are devoted to handmade ethos, a wide variety of flavors, and above all, the quality of their products. These are pies like Grandma used to make — sometimes literally, as it’s not uncommon to see an actual grandma (or grandpa) in the kitchen — and bakeries preserving a tradition as old as the Island itself.