I was asked to make a translation of this recipe that was found online, and it is a sweet treat for both groups of kids. Kids in small bodies and kids in adult bodies. Piloncillo. also know by the name of Panela or Rapadura, is a hard block of brown sweet that results from the refining process of sugar. I guess that brown sugar would be a good substitute if you can´t find the real thing. If you can look it up in Mexican or Colombian Food Stores, Centralamerican Food Stuffs might carry it too.