Add water, butter, sugar and salt to a large saucepan, bring to a boil over medium-high heat.

Add flour reduce heat to medium-low and cook and stir constantly with a rubber spatula until mixture comes together and is smooth

Transfer mixture to a large mixing bowl, let cool 5 minutes.
Add vanilla and egg to flour mixture and mix with your spatula till it’s combined and everything is smooth

Transfer to a 16-inch piping bag fitted with a rounded star tip (no bigger than 1/2-inch).

Preheat oil till it’s hot and reduce heat ;

Carefully pipe mixture into preheated oil, into about 6-inch lengths, cut end with clean scissors.

You can decide to pipe it down on a parchment paper and place in the oil one after the other

Let fry until golden brown, about 2 minutes per side. Transfer to paper towels to dry briefly

Serve warm with ice cream or transfer to cinnamon sugar mixture and roll to coat.