We saw this on "No Reservations"; this is our approximation of it. It is Swedish street food. Amounts are approximations; make this to suit your own ideas. These amounts were based on how I made it tonight. Note: I didn't bother making the shrimp salad. I just layered everything on in the order listed. If you do that, however, you need to chop the apple at the last moment because otherwise it turns brown.