Place eggs, sugar in a large bowl. Beat for 3 minutes until the mixture becomes lighter. Slowly, add melted butter to the egg mixture. Add vanilla and anise seeds.
Heat pizzelle press.
In a medium bowl, whisk together the flour, baking powder, and salt. Carefully add to the egg-sugar mixture. Beat until all the ingredients are just combined. Do not overbeat.
Add about 2 tablespoons of batter on the center of the pizzelle pattern. Press for 1:30 minutes or until golden brown. Using a spatula, remove from the press and place in a cooling rack. Repeat the process with the rest of the batter.