Line a 7-inch springform pan with clear plastic wrap; set aside.
In a small bowl soften gelatin in cold water. (Liquefy gelatin by setting bowl in a pan of hot water or in the microwave for approximately 20 seconds on low.) Set aside.
In a food processor, combine cream cheese and sour cream until smooth. Add 1 tablespoon of softened gelatin mixture. Process until combine.
Spread 1/2 of cream cheese mixture onto the bottom of prepared springform pan.
In a medium bowl, combine mayonnaise, salt, white pepper, and 1 tablespoon gelatin mixture. Add chopped eggs and stir to combine. Spread egg mixture onto top of cream cheese mixture. NOTE: At this point, throw away the remaining gelatin mixture not used.
Add chopped green onions to remaining 1/2 cream cheese mixture; stir to combine. Spread mixture over the top of the egg mixture.
Cover with plastic wrap and press gently to pack cheese. Refrigerate several hours or overnight. To serve, uncover, remove springform pan, and invert onto serving plate.
Remove caviar from the refrigerator. In a fine-meshed strainer, add a small amount of the caviar. Lightly rinse with cold water. Blot the bottom of the strainer on paper towels and transfer the caviar to a separate bowl until all of it is washed. Top prepared torte with caviar; gently spread to the edges or spoon caviar decoratively over the top. NOTE: Use a cookie cutter on top and fill with caviar to make a nice design. Garnish with parsley.
Serve with assorted crackers.
** You can use an inexpensive caviar in this recipe like Salmon, Whitefish, or Lumpfish.
For neat edges: When you make designs with caviar, such as the topping for the caviar pie recipe, make a straight edge by holding a table knife blade perpendicular to the surface along the edge line. Fill design just up to the knife blade.
If there will be a second color caviar next to the first one, fill it in on the other side of the knife blade. Then lift blade straight up. The small space between the two caviars will keep them from mingling.
Caviar Torte or Caviar Pie Recipe: https://whatscookingamerica.net/Appetizers/caviartorte.htm