Grind cinnamon stick until fine. Set aside.
Place rice flour in a large bowl.
Add cinnamon, sugar, shortening, salt, baking powder, and eggs.
Mix ingredients together.
Gradually add milk until the dough forms a soft ball.
Mix with hands for the best texture.
Shape dough into 12 balls.
Arrange balls on wax paper-lined baking sheets.
Flatten each ball with two fingers to create ridges.
Sprinkle it with pink sugar.
Bake at 350℉ for 15-20 minutes.
Remove when well browned. Enjoy!