Preheat the oven to 170 degrees F. This is for allowing the dough to rise.
Place the water, sugar, and yeast in the bowl of a stand mixer. Let it stand 10 minutes to activate the yeast. It will be bubbly and frothy.
Add in the 2 tablespoons of melted butter, salt, and flour. Attach the dough hook to the mixer and set the speed button to the slowest speed to begin mixing the dough, for about 30 seconds.
Move the speed button up one click and continue mixing for another 30 seconds.
Bring the speed button up one more click and mix until the dough comes together. It will form a ball and the sides of the bowl will be mostly clean with no dough sticking to them.
If the dough is too wet, add in some flour, one tablespoon at a time. If it’s too dry, add in some water, one tablespoon at a time.
Place the dough on a cutting board and cut it into 4 equal parts. Roll each piece into a ball using your hands.
Spray a 6 x 6 cake pan with non-stick spray.
Cut some parchment paper into a 6 x 12 inch strip and fit it into the cake pan, leaving an inch sticking up out of the pan on each side. Spray again with non-stick spray.
Set the 4 dough balls into the cake pan. Cover with a fine-weave tea towel.
Turn off the oven and place the cake pan inside. Allow the dough to rise there for 30 minutes to 1 hour.
Remove the cake pan from the oven and preheat it to 375 degrees F.
Bake the rolls for 20 minutes.
Remove from the oven and brush with melted butter.
Use the parchment to easily lift the rolls out of the pan. Allow to cool at least 5 minutes.
Video
Notes
The water temp is right when the water feels just barely warm to your finger. Water that is too hot will kill the yeast and too cold won't activate it.