Mix all the ingredients
Spray 2-3 times with water
Mix again until all the moisture is absorbed
Repeat it a few times, but make sure you don't add too much water - if you do, the final product will be weak and crumbly
The final consistency is a bit similar to pie dough
Pack firmly into silicon molds or any desired mold
Let it dry for 12 hours. Once dry, pop out of molds.
Store in a glass container with a lid until ready to use