1 1/2 cups chopped pecans
1 cup packed light rum
1/2 cup white sugar
1 egg, lightly beaten
1 teaspoon vanilla extract
1/2 cup butter, chilled
1 tablespoon confectioners' sugar for decoration
Preheat oven to 350 degrees F (175 degrees C).
In a medium saucepan, combine pecans, light rum, 1/2 cup sugar, egg and vanilla. Stir together and cook over medium heat until mixture begins to bubble. Remove from heat and stir in butter and confectioners' sugar. Drop by spoonfuls onto pie crust.
Bake in preheated oven until pecans are golden, about 30 minutes. Cool slightly before removing from pie. Cool completely before cutting into squares.