Key Lime Pie

piecrust:

1/3 c sugar

1 stick unsalted butter at room temperature

pinch of salt

1 1/2 c + 1 T flour

1 1/2 t vanilla

1 extra large egg

2 T molasses

1/2 T ground ginger

1/4 t ground cinnamon

filling:

1 14-ounce can sweetened condensed milk

1/2 c key lime juice

4 extra large egg yolks

1 t vanilla

preheat oven to 325.  cream sugar, butter, and salt until smooth.  add flour, egg, vanilla, molasses, ginger, and cinnamon and mix.  roll out dough on a lightly floured surface into 13 inch wide and 1/4 inch thick.  line a tart pan with removable bottom with dough.  trim excess dough.  bake 12-15 minutes. 

in medium bowl whisk together all filling ingredients.  pour into pie shell and bake until filling sets to consistency f a soft custard, about 15 minutes.  cool pie completely