1 1/2 c. sugar
1/2 c. corn starch
1/2 c. cocoa
1/2 c. milk
4 egg yolks
2 c. milk
1 tsp. vanilla

Mix 1/2 cup milk and 4 egg yolks together. Add to other ingredients. Add remaining milk and vanilla. Cook over low heat. Stir continuously. When thickened, pour into precooked pie shell. Beat egg whites, put on top of mixture. Brown.