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Ingredients:

Soya bean milk   1 Litre
Gypsum powder   1 tsp
Corn starch    1 tsp
Water     50ml

Steps:
  1. Heat soya bean milk in medium-low heat.
  2. Put gypsum powder, corn starch and water in a large bowl.  Mix well.
  3. Pour in the boiled soya bean milk.  Stir well. 
  4. Remove bubbles with a spoon.
  5. Set aside for 30 to 45 minutes until set.