Hardenshnitzle Share definition Flag A pastry sold at cake stores about 4 inches long, red icing as an outside layer. Every Friday a Hardenshnitzle is made at the cake factory! I can't wait to eat some. Hardenshnitzle by Hardencranz and Gildensturn March 18, 2008 0 0 Get merch Get the Hardenshnitzle mug. Buy Now — $32.95 See more merch