Make this Krispy Kreme Donuts Recipe and you'll recreate and enjoy the famous light, delicately crispy, and perfectly glazed donuts at home!
Steam or bake the potato with the skin on until fully tender, about 30 minutes. Peel the potato while hot and push it through a sieve to finely mash it. Measure out ¾ cup (6 oz/170g) and place in a large bowl. This is the amount you will need for the recipe.
To the bowl of potatoes, add the milk, butter, egg, and vanilla and whisk until smooth.
In the bowl of a stand mixer fitted with a dough hook, whisk together the flour, sugar, yeast, and salt, then pour in the wet ingredients.
Mix on medium-low speed for 6 to 8 minutes. The dough should be very soft but still be able to mostly clear the sides of the bowl and just hold its shape.
On a lightly floured surface, pat out the dough to ½ inch (12 mm) thick and using a 3-inch (7 ½ cm) and 1-inch (2 ½ cm) cookie cutter, cut out doughnut shapes. Transfer to the prepared baking sheet and gather and reroll scraps to get 12 doughnuts.
Whisk the powdered sugar, milk, and vanilla extract together to make a smooth, thin glaze that should go on fairly clearly. Add more milk if needed. Set aside.
In a large, heavy-bottomed high-sided pan, pour oil 2 to 3 inches deep and heat on Medium to Medium-Low for 5 minutes. (You can also use a candy thermometer and heat to 325°F (165°C).
Once the oil has reached temperature, fry the doughnuts, 2 to 3 at a time. After about a minute, when the doughnut is golden on one side, flip and fry the other side.