Sift or whisk together flour and baking powder and then set aside.
In another bowl, beat eggs and sugar together for about 3 minutes until they're fluffy.
While beating, slowly drizzle in the cool, melted butter. Then add in the vanilla extract.
Add in the flour mix little by little and beat until well combined.
Heat the pizzelle maker and then spray it with olive oil or butter. Add about 3 tablespoons of the dough (about half an ice cream scoop) just behind the center of the pizzelle maker. It will spread as the iron comes down.
Cook for 30 seconds.
Use a metal spatula to remove the cookies and place directly on a cooling rack
Let them cool completely and then dust with powdered sugar.