When he's not cooking meals for the guys at Miami Fire-Rescue Station 1, Derek Kaplan is baking pies: apple, coconut cream, peach, banana cream, pecan, chocolate pecan, and his signature key lime. It all started as an experiment to perfect his recipe, but friends liked what they tasted, and Fireman Derek's Key Lime Pies was born in 2008. The citrusy dessert has just the right balance of tartness and sweetness. Its filling, prepared with fresh-squeezed key lime juice, is creamy and delicious, and the graham cracker crust is homemade. Pies are available whole ($15) or in single-serving cups ($3 each or ten for $25), which are the perfect size to indulge with less guilt. Find them around town at places such as La Camaronera, Slice-N-Ice, and Bon Appétit Walk-A-Way Café (2600 NE Second Ave., Miami), where Kaplan bakes his wonders. Or simply call or email him to order.