Toast the black sesame seeds for 20-30 seconds. Add black sesame seeds to a food processor or spice grinder. Pulse until it has broken down into a fine powder. I would highly recommend a spice grinder for the best results. Set aside.
Add the melted butter, granulated sugar, vanilla extract, salt, egg, and whole milk to a large bowl. Mix until well incorporated.
Add the black sesame seeds, all purpose flour, and baking powder to the mixture and mix until well incorporated. Your batter is done!
Heat up your waffle maker. One of the keys to a crispy waffle is a hot waffle maker. The batter should sizzle once it hits the waffle maker.
Add 1/4 cup of the batter to the waffle maker and cook for 3-5 minutes until brown and crispy. You may use more or less of the batter depending on the waffle maker you have and how big you want to make your waffles. Make sure to read the directions on your waffle maker. One way you can tell the waffle is done is by watching the steam. Once the steam disappears, the waffle should be cooked through. Repeat for the rest of the batter.
Serve with butter, maple syrup, and fresh fruit. I personally like strawberries!