Classic tomato aspic - can be served as a first course as is, or with the addition of shrimp,crabmeat and/or avocado. Serve with home made mayonnaise - Recipe #441844. Please do not use store bought mayonnaise with this dish. Also, you mush use full-fat brick cream cheese - do not use low fat cream cheese or the type which comes in tubs - if you do the cream cheese layer will not set properly. When it comes to the celery, what you really want to use is the leaves from the celery; Food.com wouldn't let me list that as an ingredient, but that's what you should use. I use Gold's prepared fresh grated horseradish in this recipe. It can be found in the refrigerated section. If you cannot find the packets of Knox gelatin, the amount of bulk unflavored gelatin to use is one ounce.This should be made the day before you wish to serve it - the aspic needs to be refrigerated overnight in order to set. "Cooking Time" is refrigeration time.