Add melted, cooled butter, vanilla, and anise seeds. Beat again.
Add flour and baking powder to a bowl and sift into the egg mixture. Batter should be thick enough to be dropped by a spoon (a mix between pancake batter and cookie dough).
Spray a pizzelle maker with nonstick spray and drop a tablespoon of mixture onto the pizzelle maker.
Close the pizzelle maker and allow to cook until the pizzelles are brown. My maker takes about 24 seconds.
Remove the pizzelle from the pizzelle maker and place flat on a cookie sheet to cool. Spray pizzelle maker with nonstick spray between each new round of pizzelle.
Dust with powdered sugar if so desired. Enjoy!