This is an excerpt from Das Kuchbuch der Sabina Welserin
(Germany, 16th century - V. Armstrong, trans.)
The original source can be found at
David Friedman's website
161 To bake white Strauben. Take egg whites, well beaten, and some wheat flour, make a thin batter out of it, and let it run through a skimming ladle. Turn the Strauben at once in the fat. Wind them around a rolling pin, then they become curved.
Other versions of this recipe:
To bake Strauben for a meal (Das Kuchbuch der Sabina Welserin)
If you would fry white Strauben (Das Kuchbuch der Sabina Welserin)
If you would bake good fried Strauben (Das Kuchbuch der Sabina Welserin)