Beat together:

2 sticks unsalted butter
1 3/4 cups confectioner's sugar

Add:

1 egg
1 tsp. almond or vanilla flavoring

Add:

3 cups + 6 T. all purpose flour
1 tsp. baking soda
1 tsp. cream of tartar
1/4 tsp. salt

Mix in 1 1/3 cups ground nuts

Divide batter into 4 logs, and cut each into 20 pieces and roll into balls.
Bake at 375 for 15 minutes.