1. Take about 2 cups of water in a vessel. Add 1 tsp of starch powder and about 1/4 tsp of salt to it. Salt is added so that the colour of the threads doesn't spread. This is useful for doilies made with more than one-coloured thread.
2. Bring this to a boil. Allow it to cool completely.
3. Dip the completed doily in this starch water.