Preheat your pizzelle iron by following the manufacturer's instructions.

Whisk together the flour, sugar, and baking powder in a bowl until well combined.

Beat the eggs in another bowl until fluffy, then mix in the melted butter, vanilla extract, and anise extract until smooth.

Fold the dry ingredients gradually into the wet mixture until just incorporated.

Spoon about one tablespoon of batter onto each section of the heated iron. Close gently and cook for 30-40 seconds or until golden brown.

Remove each pizzelle carefully and let them cool on wire racks. Dust with powdered sugar before serving if desired.