Gradually add glutinous rice flour into the yam puree to form a dough. If your yam is not sweet enough, you can add some sugar. If the dough is too wet, add some more glutinous rice flour. If too dry, add some water.
Take a piece of dough, roll into a ball and flatten it, put some brown sugar / palm sugar, roll into ball.
Put the balls into boiling water under medium heat, cook until the mochi floating. Take it out and coat with shredded coconut. Enjoy!
*This recipe can make about 10 mochi