In a large bowl, add lukewarm water, sugar, and sprinkle the yeast. Cover, and let the yeast activate. This will take approximately 10 minutes.
2 ¼ teaspoon Active dry yeast (1 packet), 2 teaspoon Sugar, ½ cup Lukewarm water
Peel the potato's skin, cut them into cubes, and wash them. Sprinkle some water, cover it with a lid, microwave for 3 minutes, and then mash the potato. You will need approx ⅓ to ½ cups of mashed potato. (check alternate method to cook potato in tip section)
1 Medium sided Russet potato
Add milk, salt, Butter, mashed potatoes, and flour to the activated yeast and mix using a stand mixer or wooden spoon until everything comes together.
2 ¼ to 2 ½ cups All purpose flour, ½ cup Lukewarm milk, 1 teaspoon Salt, 2 tablespoon Butter, unsalted and softened
Dust the working surface. Transfer the dough to a working surface and knead it for at least 6 to 8 minutes to get a smooth tacky dough. It should not be sticky or wet.
Grease the bowl with oil. Transfer the dough to greased bowl, cover it and place it in a warm place for 1 hour or till it is doubled.