Preheat oven to 325 degrees F.

In a mixing bowl, cream together butter and sugar until light and fluffy.

Add water and vanilla extract to the butter mixture and beat until well combined.

Gradually stir in the flour and finely chopped pecans.

Shape the dough into 2 1/2 inch circles, using approximately 1 tablespoon of dough for each cookie.

Top each cookie with a slightly rounded teaspoon of ready-to-use mincemeat.

Place the cookies, seam side down, on ungreased baking sheets.

Bake for 20 minutes, or until the bottoms are lightly browned.

Remove from oven and let cool on wire racks.

Place confectioners' sugar in a plastic bag.

Add a few cookies at a time to the bag and gently shake until completely coated with sugar.

Store any leftover cookies covered in the refrigerator.