Family Recipes - Derby Pie

This recipe is a long-time family tradition, Derby Pie, so delicious either cold or warm, makes a great breakfast too. It isn't a celebration in our family without Derby Pie. 

1 stick butter or margarine
3/4 c. sugar
1 c. chocolate chip morsels
1 tsp. vanilla
1 unbaked pie shell
½ c. all-purpose flour
2 eggs

Melt margarine and cool. Mix sugar and flour. Add margarine. Slightly beat the eggs and add to the preceding mixture. Add chocolate chips and vanilla. Pour into pie shell and bake 40 minutes at 350°. Serve hot or cold with ice cream or whipped cream. I always double this.