Chocolate Pudding(Makes 4 Servings)  
["1 egg yolk", "2 c. milk", "1/4 c. white flour", "1/2 c. granulated sugar", "2 Tbsp. cocoa", "1/8 tsp. salt", "1 tsp. vanilla"]
["For Cream Pie Filling, add 1 teaspoon butter or 1 teaspoon margarine."]
["egg yolk", "milk", "white flour", "sugar", "cocoa", "salt", "vanilla"]