a wonder baker looks rather like a tube pan (like for an angel cake or a Bundt pan); [unlike a bundt, some come with a fitted lid that has several vents or holes, all around its circumference]. it sits on a flat metal ring that is meant to be used as a heat-distributor that is placed on a gas flame. & you bake on a very low flame. thus, it’s something like a stove-top oven for people who have kitchen burners but not an oven. we always used it exclusively to bake cakes.
I’m a little surprised to hear that they’re discontinued, but actually not so much… there is such a variety of Pesach cakes sold these days, albeit pricey.
my shvigger, a’h, always baked a wonder baker cake for my DH as his birthday is the 2nd day of Pesach. after she was niftar, I &/or my daughters would bake him one or more… always a challenge/tricky cuz the cake’s made from eggs that if not whipped up properly & baked properly, has an eggy-custard consistency. for the last couple of yrs. I’ve bought a shmancey looking store-bought for him, but he appreciates much more the wonder baker cake my (married)daughter makes for him.
& glad for the info, ursula.. as now I know, for sure, to give the remaining 2 wonder bakers I have to my other daughter & d-i-l. maybe you should check the housewares stores in BP? I don’t know Willi @ all; in Flatbush- the Buzz? g’luck.