In a clean bowl, measure and add the ammonia powder, baking soda, alum, and salt. Then add 1-½ cups of water. Mix well. (The mixing of these ingredients will create bubbles and a little noise.
Add the flour and mix well. Knead the mixture with your fist. If it sticks to your hands, put some water on hands and continue to knead for 5 minutes. Cover with a wet cl