01 -
Preheat your oven to 350°F (175°C).
02 -
In a bowl, mix together the Parmesan cheese, mozzarella cheese, egg, and onion powder until well combined.
03 -
Spread the mixture evenly on a baking sheet lined with parchment paper.
04 -
Bake in the preheated oven for 15 minutes or until golden and bubbly.
05 -
Remove from the oven and let cool slightly before cutting into pieces.