Chocolate Pie
["1 c. sugar", "2 Tbsp. flour", "2 Tbsp. cocoa", "2 egg yolks", "1 c. Pet milk", "2 Tbsp. butter", "1 tsp. vanilla"]
["Mix sugar, flour and cocoa.", "Add egg yolks and milk.", "Cook, stirring constantly, until thick and smooth.", "Add butter and vanilla. Pour into baked pie shell.", "Top with Cool Whip."]
["sugar", "flour", "cocoa", "egg yolks", "Pet milk", "butter", "vanilla"]