We make balls and just drop them in the form of a circle (in a round pan of course) with a big ball in the middle.
Also what my mother does for Yontiff is she makes a topping and it makes the challah like cake.
The recipe is rather unhealthy, but once a year is okay 🙂
1 cup flour
1 cup sugar
1 cup marg
crumble it up with your hands until it forms a crumble and sprinkle on top of the challah before you bake it. (You could freeze it too.)