Chocolate Pie
["4 Tbsp. flour", "1 c. sugar", "1/4 tsp. salt", "2 c. milk", "3 egg yolks", "1 1/2 oz. chocolate or 1/3 c. cocoa", "1 Tbsp. butter", "1 tsp. vanilla"]
["Mix and sift dry ingredients.", "Add milk and cook slowly.", "Add cocoa and stir.", "Beat egg yolks and stir them into hot mixture. Add butter and vanilla.", "Continue stirring and cook until stiff. Cool and put in cool pie shell.", "Add meringue and bake until light brown.", "Cool."]
["flour", "sugar", "salt", "milk", "egg yolks", "chocolate", "butter", "vanilla"]