2 tbsp. flour
2 tbsp. cornstarch
3 tbsp. cocoa
1 c. sugar
pinch of salt
3 egg yolks
2 c. milk

Mix dry ingredients. Add small amount of milk and egg yolks; mix well. Add rest of milk and cook until thick. Remove from heat and add 4 tablespoons butter and 1 teaspoon vanilla. Pour into baked pie shell. Cover with meringue.