This makes a fantastic accompaniment to any meat dish; alternatively, you could add cooked chicken to the strudel (just reduce the leeks and mushrooms slightly) for a full meal. Serve it with salad and enjoy a full meal in no time.
These little fellows of Finnish descent puff up in the oven just like a Yorkshire pudding. Once they fall, load them up with fresh berries. Alternatively you can make one large krupso in a 9- x 13-inch cake pan.