In a bowl, combine warm water, sugar, and yeast. Let it sit for 5 minutes until frothy.

In a separate bowl, mix flour and salt. Add the yeast mixture and olive oil, then knead until smooth.

Cover the dough with a cloth and let it rise in a warm place for about 1 hour, or until doubled in size.

Preheat the air fryer to 375°F (190°C).

Once the dough has risen, divide it into 4 equal pieces. Roll each piece into a circle.

On one half of each circle, layer mozzarella, pepperoni, ricotta, and Italian seasoning. Fold the dough over and seal the edges.

Brush the tops with olive oil and make a few slits for steam to escape.

Place the calzones in the air fryer basket, ensuring they are not touching.

Cook for 12-15 minutes or until golden brown and crispy.

Serve hot with marinara sauce for dipping.