You need a super easy and quick rhubarb cake that is simple to make and done rather quickly? I got you covered. We are going to make a dough that serves as the base as well as the crumbs. This dough does not need to chill like pie crust and this is also the reason why the cake is in the oven rather quickly. The filling also has to be prepared, but not be heated, it will be placed raw on the base and then baked to perfection. In Germany this cake is traditionally served with a dollop of whipped cream and/or icing sugar sprinkled on top. I originally had planned to dust the cake before taking pictures, but I somehow forgot. I digged into the warm cake and devoured two pieces, that is how excited I got!