There is something magical about the moment a fork cracks through a buttery, crisp tart shell and meets a cloud of silky lemon curd underneath. I discovered that magic on a rainy Tuesday afternoon a few years ago, when I had a bag of frozen blueberries, a counter full of lemons, and a deep craving for something bright and beautiful. The first bite of these Blueberry Lemon Tarts felt like a hug from summer itself. The tartness of the lemon made my cheeks pucker just enough, and then the sweet, ja