01 -
Whisk together all-purpose flour, baking powder, and salt in a large mixing bowl.
02 -
In a separate bowl, whisk together the egg, granulated sugar, milk, vegetable oil, and vanilla extract until thoroughly combined.
03 -
Add the dry ingredients to the wet mixture and blend until a smooth batter forms, taking care not to overmix.
04 -
Lightly coat a waffle iron with nonstick cooking spray and preheat according to manufacturer instructions.
05 -
Pour an even layer of batter into the preheated waffle iron and cook for 5 to 7 minutes until golden brown.
06 -
Remove cooked waffles and allow to cool briefly, then slice each waffle horizontally to form top and bottom halves.
07 -
Spread pizza sauce onto the bottom half of each waffle, add shredded mozzarella and sliced pepperoni, and broil just until the cheese is melted.
08 -
Cover with the waffle top halves and serve promptly while hot.