Here is a recipe that I haven't tried yet.
Betsy

Author: Elizabeth Pruyn
Date: 1996/10/11
Forums: rec.food.cooking

This is my grandmother's recipe that always gets rave reviews.

NANA'S RUM BALLS

1 cup butter
1/2 cup powdered sugar
2-1/4 cups all-purpose flour
1 teaspoon rum extract
1 teaspoon vanilla
1/2 teaspoon salt
3/4 cup finely chopped walnuts

Cream the butter, add the powdered sugar in gradually and cream well.

Sift the flour and salt and work into the butter mixture. Work in the vanilla, rum extract and walnuts. Chill.

Pre-heat the oven to 325F. Roll into balls about 1" in diameter and bake on slightly greased pan for 14-17 minutes.

Let cool and roll in powdered sugar. Cool completely and roll again in the powdered sugar.