Dunkin Donuts French Cruller

1 cup hot water
6 tablespoons unsalted butter (85 grams), cut into cubes
1 cup all purpose flour
1 tablespoon granulated sugar
pinch of salt
3 large eggs, room temperature
2 egg whites, room temperature
vegetable oil for frying
Glaze:
1½ cup powdered sugar
2-3 tablespoons milk

Cut 12 squares of parchment paper, the squares must be approximatively the size of your palm.
They will be used to pipe the donuts onto.
Arrange them on a baking sheet and spray with baking spray. Set aside.
In a large medium bowl mix powdered sugar and milk until well combined.
The mixture must be smooth with no lumps and it should be a little thick, but still pourable.
For a more transparent glaze, add one extra tablespoon of milk.
For a thicker glaze add less milk. Set aside.
In a medium sauce pan over medium heat combine water, butter,
granulated sugar and salt until completely incorporated and the butter is fully melted.
Stir often.
Once the butter is completely melted, using a wooden spoon stir in 1 cup of flour,
and work very quickly to incorporate the flour into the butter mixture over medium heat.
Cook it on medium heat for 2 minutes, stirring continuously.
This will remove the extra moisture from the batter, and make the donuts lighter.
Transfer the batter to the bowl of a stand mixer fitted with the paddle attachment and
mix the batter for 1 minuts on medium - high speed to cool it off.
Reduce mixer speed to medium and mix in the eggs one at a time. Followed by the egg whites,
mix until fully combined and the mixture is shiny.
Transfer the mixture to a large pastry bag fitted with a large star tip and pipe the donut rings onto the prepared paper squares.
Fill a heavy bottomed sauce pan with 2-3 inches of vegetable oil, once the oil reaches 370 F reduce the heat to medium low and start frying the donuts.
With the help of a spatula transfer a donut to the pan, parchment paper side up,
fry for a few seconds and using chopsticks remove the paper and discard.
Fry the donuts 1 minute per side, until puffy and golden brown.
Remove from the pan and place on a cooling rack, using a spoon pour some of the glaze immediately onto the donut.
Repeat with the remaining donuts.
Let the glaze settle for 30 minutes.