In a large mixing bowl, combine all ingredients except the caviar.
Blend with electric beater until smooth and light.
To Assemble:
Choose a clear crystal bowl, preferably straight-sided, with a 4-cup
capacity (trifle can also be assembled in individual cordial glasses).
Place a layer about 2 inches thick on the bottom, being careful to keep
the sides clean. Next, make a 1-1/2-inch layer with the caviar.
Continue with remaining cream mixture, alternating layers. Chill
thoroughly in refrigerator. Cream mixture is best made a day in
advance, then assembled with caviar and garnishes just before serving.
Serve chilled with toasted, buttered English muffin wedges.