Date Pecan Balls

This is a recipe that I got from one of my Aunts. 3 people I'll give a goodie box for christmas and Date Pecan Ball is one of the treats will be in the box.
Date Pecan Balls
1 cup of soft butter
½ cup sugar
2 teaspoon vanilla
2 cups sifted flour
2 cups of ground pecans
1 cup of whole dates, cut up ( I grind mine)

Cream butter and sugar. Add vanilla and mix. Add flour and mix. Blend in pecans and dates. Roll a teaspoon of dough into balls. Refrigerate balls for 1-2 hours. Bake at 350 for 20 minutes. On top shelf of oven. Watch close. Remove from oven and roll balls into powdered sugar. Let cool and
re roll or sprinkle with powder sugar.