moyshe, what are the ratios you’re using for it? How many potatoes and eggs, how much oil?
I found that for a 5 lb bag of potatoes, using 8 eggs works well for an overnight kugel. I also use about 1/2 to 3/4 cup of oil.
Put it in the oven on 500 degrees for about an hour. Then, lower it to 225 and put a pan filled with water on the lower rack. Cover the kugel and put it on the top rack. Leave it overnight.