In a medium saucepan, combine 1 cup of water, 1/3 cup plus 1 tablespoon of unsalted butter, 1 teaspoon of salt, and 2 tablespoons of sugar. Place the pan over medium-high heat and bring the mixture to a boil, stirring occasionally.

Once boiling, reduce the heat and gradually add 1 cup of plain flour, mixing until a smooth dough forms. Remove the pan from the heat and let it cool slightly.

After allowing the dough to cool for about 4-5 minutes, add 1 large egg and 1 teaspoon of vanilla essence. Use a sturdy spatula or wooden spoon to mix thoroughly until the dough is smooth and cohesive.

Next, transfer the dough into a piping bag fitted with a large star tip for that classic churro shape. Ensure the tip is securely attached before getting ready to pipe.

Set your air fryer to preheat at 375°F (190°C). Spray the basket lightly with nonstick cooking spray to prevent the churro bites from sticking.

Once preheated, carefully pipe bite-sized pieces of churro dough into the air fryer basket. Avoid overcrowding and work in batches if necessary.

Lightly brush the piped churro bites with melted butter and air fry them for 10-12 minutes, or until golden brown and crispy.

While air frying, combine 1 cup of white sugar with 1 tablespoon of cinnamon powder in a bowl and stir well.

Once churro bites are golden and crispy, toss them in the cinnamon-sugar mixture until fully coated.

Serve your delicious Sweet Air Fryer Churro Bites on their own or with dips like chocolate syrup or honey.