1/2 c. butter
1/2 c. shortening
1 c. sugar
1 tsp. vanilla
1 egg
2 1/2 c. flour
1/2 tsp. baking soda
1/2 tsp. salt
2 tbsp. milk

Have all ingredients room temperature.

Cream butter, shortening, sugar and vanilla. Add egg and beat well. Add dry ingredients, sifted. Work in milk using hands if necessary. Shape into balls. Put on ungreased cookie sheet. Dip glass in sugar after greasing and flatten.

Bake at 400°F for 8 minutes. Remove immediately.