Maple Butter Tarts

Preheat oven to 350°F (175°C). In a bowl, cream together the softened butter and brown sugar. Beat in the egg. Stir in the maple syrup, flour, vanilla extract, and a pinch of salt until well combined. If adding nuts, place them at the bottom of the frozen tart shells. Pour the mixture into the tart shells, filling each about 3/4 full. Bake for about 15 minutes, flipping the pan halfway through. Let cool completely before topping with whipped cream.