The Olive Dragonfly:Bright White Clay Dough Recipe 2 c baking soda, 1 c corn starch, 1 c water.-combine & heat over medium til dissolved. stir until it resembles mashed potatoes & transfer to mixing bowl. cover with damp dish cloth til cool enough to knead, until soft and smooth. can add a few drops of water if dry. roll out to 1/4". bake on parchment paper at 175 for 2 hours. flip half way through. allow to cool completely