In a large bowl, beat the eggs and sugar together until light and fluffy. Add in the melted butter and vanilla or anise extract, and mix well.

In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until everything is well combined.

Drop a small amount of batter onto the center of each pizzelle iron plate. Close the iron and bake for 30-45 seconds or until golden brown.

Use a fork or tongs to remove the pizzelles from the iron and place them on a wire rack to cool.