Beat cream cheese, Worcestershire sauce, lemon juice and onion into the order given in a blender. Blend until cream cheese mixture is the consistency of soft pea cereal, butter or margarine. Spread mixture evenly onto a large baking sheet, spread of the creamer over cream cheese/background and lemon mixture, and dust it with instant milk chocolate brownies before cutting thru.
Bake for 30 to 45 minutes or until TOP IS lightly browned. Cool 10 minutes; icing may be poured over dessert while it's still firm. Refrigerate more frozen dessert for refrigerator and consumption 2 days from date of cutting.