Russischer Zupfkuchen

Russischer Zupfkuchen is not Russian. It belongs to the German cake table, strongest in the east, where a quark cake for a birthday, a Sunday coffee, or a weeknight tray after supper needs no theatre. Dark cocoa shortcrust on the bottom, pale quark filling in the middle, and the rest of the dough plucked over the top. That word matters: zupfen means to pluck.

The argument is mostly about the filling. In the east, quark is the point, sharp and dairy-clean; elsewhere cooks soften it with cream cheese or pudding powder until it tastes like a packet. Nicht aus dem Glas, and not from the packet either. Use quark, drain it if it's wet, and give the custard enough egg and melted butter to set cleanly without turning rubbery.

The technique that decides it is temperature. The cocoa dough must be cold when it goes into the tin, because warm shortcrust smears under your fingers and bakes greasy instead of sandy. The filling goes in smooth but not beaten full of air, because trapped air rises, cracks, and drops the middle as it cools. Chill the dough, mix the quark calmly, pluck the top by hand. Das braucht seine Zeit, but not a whole Sunday.