Brush the tops of the empanadas with egg wash then sprinkle with turbinado sugar. (holajalapeno.com)
When they come out of the oven, let them cool for a couple minutes (they will continue to cook and flatten slightly), and then while still warm sprinkle with turbinado sugar. (passthechallah.com)
Sprinkle with turbinado sugar just before baking, if desired. (bakefromscratch.com)