Grandma'S Chocolate Pie
["1 c. sugar", "3 Tbsp. flour", "3 Tbsp. cocoa", "2 c. milk", "4 egg yolks", "1 tsp. vanilla", "1/4 stick butter"]
["Mix sugar, flour and cocoa.", "Add milk, then the butter. Beat egg", "yolks\tand", "add to mixture.", "Cook until thick.", "Add vanilla. Pour", "into\tbaked", "pie", "shell and top with meringue. Bake until top is light brown."]
["sugar", "flour", "cocoa", "milk", "egg yolks", "vanilla", "butter"]