Step 5: Throw it in the oven
If you choose to, take it out of the oven after about 10 minutes.
Separate the egg whites from the egg yolk, and use the brush to 'paint' the calzone.
Once you covered it with egg whites, sprinkle some parmesan on top of the calzone.
Put it back in the oven for about 7 more minutes and you're done!