Prepare the Potato: Begin by washing the russet potato thoroughly. Place it in a pot with water and bring it to a boil. Once soft, drain the potato, reserving ½ cup of the water, and mash the potato until smooth.
Activate the Yeast: In a small bowl, combine the potato water (warmed) with honey and active dry yeast. Let it sit for about 5 minutes, allowing it to froth and activate.
Mix the Ingredients: In a large mixing bowl, combine the mashed potato, warmed whole milk, and canola oil. Stir in the yeast mixture.
Add the Flour: Gradually add flour, one cup at a time, stirring until the dough comes together. You may need more or less flour depending on the moisture content of the mashed potato.
Knead the Dough: Turn the dough onto a floured surface and knead for about 8–10 minutes until it is smooth and elastic.
Let the Dough Rise: Place the dough in a lightly oiled bowl, cover it with a cloth, and let it rise in a warm place for 1 to 2 hours, or until it has doubled in size.
Shape the Rolls: Punch the dough down and divide it into small pieces, rolling each piece into a smooth ball. Arrange the rolls in a greased baking dish.
Second Rise: Cover the shaped rolls with a cloth and allow them to rise for 30 minutes, or until puffed up.
Bake the Rolls: Preheat your oven to 375°F (190°C). Bake the rolls for 20-25 minutes, or until golden brown on top.
Serve and Enjoy: Remove the rolls from the oven, brush with butter if desired, and serve warm. Enjoy the soft, pillowy texture and subtle sweetness!