In Pilates terms "roll-up" is a powerful exercise to strengthen core muscles, train alignment and traction the spine. Some enthusiasts consider it to be the most important exercise of the Pilates tradition. In another world, a culinary world, it is a spongy cake rolled around a creamy, sweetened and flavored filling. The sponge cake can be yellow or chocolate or any flavor you wish to attempt. The filling may also be diverse. This particular variation hold hazelnut cream and the cake is a dense dark chocolate, a little heavier, slightly more moist than the traditional sponge. The recipe is a close relative of our favorite brownie. Garnished with three kinds of berries, what could be better. I remember making jelly rolls as a kid. They were usually filled with strawberry jam and didn't last too long at our house. Sometimes I would make two: one to eat right away, fresh out of the oven, spread with jam before the cake was cool and rolled immediately. The second was was also rolled but without filling and saved for a thicker, creamy combination of fruit and cream Chantilly. On a summer evening, with fresh blueberries, there was nothing more comforting than watching the stars from the front steps with a slice of roll-up melting in your mouth.