Take off the peel and divide into sections eight to ten oranges; run a knife between the skin and pulp and remove it carefully. Place the bare but unbroken pulp on a sieve to drain; roll each piece in powdered sugar, and lay them overlapping in a ring around a cylindrical mold; fix and cover them with clear jelly flavored with kirsch or maraschino. Arrange them in the same way around the outside of a double mold. Fill the center with orange Bavarian, using the juice drained from the pieces to flavor the Bavarian. Serve it with orange quarter cakes around the dish.