Preheat your oven to 180°C (350°F).

Line a baking sheet with parchment paper.

In a large mixing bowl, whisk together the eggs and sugar until smooth.

Add the sunflower oil, lemon zest, and lemon juice. Mix until well combined.

In another bowl, sift together the all-purpose flour and baking powder.

Gradually incorporate the dry mixture into the wet ingredients, stirring until a soft dough forms.

Using a tablespoon or cookie scoop, drop spoonfuls of the dough onto the prepared baking sheet. Space them about 2 inches apart to allow for spreading.

Bake in the preheated oven for 12-15 minutes, or until the edges turn lightly golden.

Remove from the oven and let the biscuits cool on the baking sheet for 5 minutes before transferring them to a wire rack.

Once completely cooled, generously dust the biscuits with powdered sugar before serving.