After making crumb cake this weekend, I wondered where the whole idea of streusel came from and how old it was. The wiki entry for streusel doesn’t really help with history, but it does talk about soboro-ppang – a Korean streusel bread with peanut butter in the streusel (?). Of course there’s a recipe. Looks OK.
Next step, I was searching through google books. What I do when I’m trying to track down the history of something is I search on the term (streusel, streusel cake, crumb cake), find the oldest reference on the front page then set the end date for my search to that and keep going until I don’t see any more entries.
I found a 19th century German book (Briefe aus und nach Grafenort) where someone was going on about different cakes and they mentioned “streuselkuchen” and the reply is, “oh, you were in Wroclaw?” (in Silesia). Huh… guess Streusel is Silesian.
The wiki entry on streuselkuchen suggests you can make a puff pastry with streusel topping. It’s called prasselkuchen and it’s as easy to make as you think. The linked recipe suggests a tart jam or lemon glaze to help cut all the sweetness. It’s also probably as messy and delicious as you think. Add that to my list of things to bake.
Well, if you search for Silesian cake, you can find some good recipes (this one looks like it was google translated from Spanish) and some good looking but different recipes (which calls for pudding mix only sold in Germany and may end up on my list as well).
I also, searching for Silesian cake, found the four pounds of flour website, the (retired) blog of Sarah Lohman, author of “eight flavors” – a very good book. She made a recipe for Silesian cheescake, which lead me to Henriette Davidis who wrote Practical Cookery which seems to be a rather well known German cookery book (Silesian Cheesecake is recipe 86 in section S) and several other books outlining a system of teaching cookery from tween to adult.
Schiller’s German national cookery for English kitchens (1873) is the first reference to streusel I can find (at least the kind you put on a cake). On a side note, the West Bend Cook Book (copyright 1902-1915) has a recipe for Crumb Cake (p. 260) that is almost the same as the Crumb Cake recipe I made (1/2 cup less flour, 1 less egg, 1 teaspoon less baking powder).
I searched for Crumb Cake, and once you go before 1875, crumb cake means pancakes made with bread crumbs (p. 193).
I think I went deep enough in that rabbit hole.