FORT MYERS, Fla. — What constitutes the perfect dessert? Is it a balance of sweetness and tartness? Is it something that reminds you of childhood? Could it be all of the above? While the strawberry shortcake might be the “official dessert” of Florida, there’s no denying the true king of the “sweet life” in The Sunshine State: The Key Lime Pie. There’s a long and contested history regarding the citrus-inspired treat. Ship salvagers and Key West cooks all lay claim to the original recipe containing a filling of condensed milk, egg yolks, and key lime juice baked into a graham...