Warm the water in the microwave for 20 seconds. Add the active dry yeast and sugar. Mix and let sit for 5 minutes or until bubbles form. Add mixture into the 1/2 cup flour and let it sit for forty-five minutes.
Place the hook attachment in your electric mixer. When the yeast mixture is ready, place flour, sugar, and salt in the small bowl and mix using a wire whisk. Warm the milk for 45 seconds and then place the warm milk, melted butter, egg, yeast mixture, and flour mixture. Mix using the hook attachment until ingredients are incorporated. Mix for seven minutes. Note that this will be a wet dough, so take one tablespoon of flour and rub it in between your hands and sprinkle some flour on the dough for easy transfer.
Sprinkle flour on the working surface and transfer the dough and form into a ball. Place dough in a greased bowl and let sit, covered with cloth, at a warm temperature for 1 hour.
When ready, divide the dough into a round dough and divide it into twelve pieces using the dough cutter. You can also cut dough and weigh 60 grams each. Please see Pandan Pandesal Post in the notes for the guide.