Until the definitive recipe can be obtained from Mother of Gypsy Boy, I offer the following (adapted slightly) from Robert Sternberg's immensely interesting, informative, and otherwise generally fascinating
Yiddish Cuisine:
2½ pounds baking potatoes, peeled
2 medium onions
4 beaten eggs
1 cup matzoh meal
½ cup corn or peanut oil*
salt and pepper to taste
Preheat the oven to 400F. Oil a two-quart loaf pan, line it with waxed paper, then oil the waxed paper. Set to the side.
Grate the potatoes and onion (by hand if you're a mensch or menschette, by food processor if you're in a hurry); drain to remove excess liquid, squeezing a bit.
Add the eggs, matzoh meal, oil, salt and pepper to the grated mixture. Mix and turn the whole thing into the loaf pan.
Bake for 45-50 minutes; unmold, leaving the waxed paper on. Cool
a bisl so that you can remove the waxed paper without desconstructing the whole kugel. (You can prepare in advance to here.)
Return to oven for another 20-25 minutes until the sides are brown and crispy.
According to Sternberg, this will serve 6-8 as a
vorspeis or accompaniment to dinner or 4 as an entree.
Ess gezuntehayt*He doesn't call for it, but if ya got schmaltz, even better.
N.B. FWIW, Claudia Roden's
Book of Jewish Food contains a pretty darn similar recipe. She uses more potatoes and fewer onions and a bit less oil. But otherwise, the recipes are close.
P.S. Reb Sternberg also offers another version that he labels a
Galitzianer version, with red boiling potatoes. He describes it as "light and airy." I wouldn't know from this; where I come from, "light and airy" potato kugel is an abomination.

Still, if you want the recipe, PM me and I'll send it along. Or...if you want Mother of Gypsy Boy's noodle kugel. Oy...to die for!
Gypsy Boy
"I am not a glutton--I am an explorer of food." (Erma Bombeck)