Set one oven rack high and one to the middle. Preheat oven to boil.
Carefully wash mushrooms to remove natural residues, then gently de-stem shrooms to create a little pocket.
Place on prep area with holes facing up and lightly stuff each pocket until full without breaking delicate outer edges.
Place filled mushrooms in a baking dish, and place on middle rack of oven for 5-8 minutes to start melting process. Check to be sure not browning too fast.
At 8 minutes, lightly sprinkle (if desired) the tops with some finely chopped chives for color and as a garnish (this is optional to make a bit "fancier").
For final step, use oven mitt to move baking pan up a tier to finish off and brown for 3-5 minutes minutes (depending on oven strength.) Cook times do vary based on ovens so watch carefully!
Remove carefully, plate and enjoy!
