I’m not completely sure what to think about this, except that it’s more like hash browns than pudding. Or possibly similar to twice baked potatoes. I believe this would be served as a side dish in place of mashed potatoes.
3 large potatoes, peeled & grated
2 med onions grated
2 eggs whole
1/8 t pepper
1 1/2 t salt
Mix all ingredients. Drain off a bit of water before adding eggs. Use ring mold, oiled. Pour 2 T oil on top. Bake 400 F 40-60 min till crusty on top. Fill center with mushrooms. Serves 8.