Soil Snack???

Tuban, a village in the East Java province of Indonesia, might be the only place on earth where you can find people who eat baked soil as a snack. How do they make a soil into a snack? Just find some gravel-free soil from the village's rice paddies, pound it by a stick into a solid block, roll it with a bamboo dagger and baked it for an hour. Rasima, a Tuban villager, takes it to the village market. Usually, she gets $2 from selling the soil snack. The villagers believe that the soil snack have the effect as a natural pain killer, and if eaten by a pregnant mother, can soften the baby's skin.

Here's some pictures of the soil snack