1 c. sugar
1/4 c. cocoa
1/4 c. flour
2 c. milk (may use evaporated milk)
2 egg yolks, well beaten
1 tbsp. butter
1 tsp. vanilla

Mix sugar, cocoa and flour in boiler. Add milk, eggs. Cook until thick, stirring constantly to prevent sticking; add butter and vanilla. Pour into baked 9 inch pie shell and top with meringue; bake 15 minutes at 350 degrees.