Burekas Tapuchei Adama (בורקס תפוחי אדמה) is the potato burekas: the family's most forgiving member, a flaky pastry wrapped around a seasoned mashed-potato filling. The angle is exactly that forgiveness. Where cheese weeps and mushrooms leak, mashed potato is a stable, dry, starchy core that protects the pastry rather than threatening it, which is why this version is often the cheapest and the one bakeries can hold longest in the case. The trade is flavor: a bland mash makes a dull burekas no matter how good the lamination, so the whole thing rests on how well the potato is seasoned.
The build is pastry, a well-seasoned mash, fold, finish. The dough is the same thin laminated sheet used across the family, brushed and stretched so it bakes into separate leaves. The filling is mashed potato, usually loosened with sautéed onion and fat and seasoned firmly with salt and black pepper, sometimes turmeric for color, occasionally a little soft cheese for richness. It should be smooth and dry enough to hold a shape, not loose or wet. It is spooned onto the dough, folded into a triangle or coiled, sealed, egg-washed, and finished with sesame seeds before baking. Done well, the pastry stays crisp all the way to the base because the filling brings no extra moisture, and the potato is savory and well salted with a clear onion backbone. Done badly, the mash is underseasoned and pasty so the whole pastry tastes of nothing, the filling is gluey from overworking, or it has been padded so thick that the pastry-to-filling ratio collapses into a wad of starch.
Within the potato reading the variation is mostly in the seasoning and the add-ins. Some bakeries keep it plain salt-and-pepper potato; others fold in fried onion, herbs, or a little cheese, which nudges it toward a potato-and-cheese hybrid worth distinguishing from both parents. Turmeric is a common touch that turns the interior gold and adds a faint earthiness. The standard street service, splitting the pastry and tucking in a hard-boiled egg, pickles, and a spoonful of tomato relish or s'chug, suits the potato version especially well because the mild starchy base takes the bright, sharp additions cleanly; that treatment is documented as its own form. The meat, cheese, mushroom, and spinach fillings are the same pastry around a different center and each deserves its own article rather than being crowded in here. On its own terms, the potato burekas is a lesson in seasoning under pressure: the pastry will almost always be fine, so everything that makes it good or forgettable happens in the mash.