In a microwave-safe bowl, heat up the milk for about half a minute. It should be lukewarm, not hot.
Add sugar and yeast and set aside until it is frothy, about 5 minutes.
Combine the flour, melted butter, salt, and activated yeast in a large bowl until well combined.
Turn your dough out onto a floured surface and knead for about 10 minutes.
Shape your into a ball and place it in a greased bowl. Then cover it with plastic wrap or a clean kitchen towel and let it rise for 1-1½ hours or until it has doubled in size.
When the dough has risen, punch it down and divide it evenly into 8 pieces. Then working with one piece at a time, shape it into a ball. As you go, arrange them on a baking sheet lined with parchment paper.
Cover the bread rolls loosely with plastic wrap and let rise for 30 minutes.
Preheat the oven to 375℉/190℃ and make the topping mixture.
In a medium bowl, combine rice flour, sugar, melted butter, yeast, and water in a small bowl and whisk until smooth. Cover it and set it in a warm place to rise while the bread rises.
Spoon or brush 2 tablespoons of the rice topping over the balls, making sure to cover all the sides.
Bake for 20-25 minutes, rotating the baking tray at around 10 minutes.
Take it out of the oven and let it cool.
Enjoy them as is or with butter. You can also make a sandwich or burger.