Follow these step-by-step instructions to create your own batch of pillowy soft yeast donuts:

Step 1: Prepare the Dough

1. Activate the Yeast: In a small bowl, dissolve the active dry yeast in warm water. Let it sit for about 5 minutes until it becomes frothy. This indicates that the yeast is active.
2. Combine Wet Ingredients: In a large mixing bowl, combine the warm milk, granulated sugar, melted butter, and salt. Stir until the sugar is dissolved.
3. Add Eggs and Yeast: Add the eggs and the yeast mixture to the milk mixture. Mix well until combined.
4. Incorporate the Flour: Gradually add the all-purpose flour, one cup at a time, mixing continuously until a dough forms. The dough should be soft but not sticky.

Step 2: Knead and Rise

5. Knead the Dough: Transfer the dough to a lightly floured surface. Knead for about 5-7 minutes until it becomes smooth and elastic.
6. First Rise: Place the dough in a greased bowl, cover it with a clean kitchen towel, and let it rise in a warm, draft-free place for about 1 to 1.5 hours, or until it doubles in size.

Step 3: Shape the Donuts

7. Roll Out the Dough: Once the dough has risen, punch it down to release air. Roll it out on a floured surface to about 1/2-inch thickness.
8. Cut the Donuts: Use a donut cutter or two round cutters (one larger and one smaller) to cut out donut shapes. Re-roll the scraps and continue cutting until all the dough is used.
9. Second Rise: Place the cut donuts on a parchment-lined baking sheet. Cover with a kitchen towel and allow them to rise for another 30-45 minutes.

Step 4: Fry the Donuts

10. Heat the Oil: In a deep fryer or a large, heavy-duty pot, heat vegetable oil to 350°F (175°C). Use a thermometer to maintain the temperature.
11. Fry the Donuts: Carefully place a few donuts at a time into the hot oil. Fry each side for about 1-2 minutes, or until golden brown. Use a slotted spoon to remove them from the oil and transfer to a paper towel-lined plate to drain excess oil.

Step 5: Finish with Sugar

12. Dust with Powdered Sugar: Once the donuts are slightly cooled, generously dust them with powdered sugar.