Derby Pie

1 (9inch) pie shell (unbaked)
2 eggs
1 Cup sugar
1/2 Cup flour
1/2 Cup butter, melted
1 (6 oz.) pkg. simi sweet chocolate chips
1 Cup pecans, chopped
1 tsp. vanilla

Beat eggs. Add sugar, flour and melted butter. Stir until blended. Add chocolate chips, nuts and vanilla. Stir and pour into unbaked pie shell. Bake at 350 degrees for 40-45 min. Prepare at least 6 hours before serving. Do not refrigerate before serving. Serve with dollops of whipped cream.