At earlier stages of the portobello's maturity, the brown mushroom has tightly closed caps that are one to three inches in diameter and little to no visible gills. This type is sold as cremini/crimini ...

but you can substitute button or white mushrooms if needed. Baby Portobello mushrooms will work, but if the mushrooms are ...

So we’re using mushrooms. Mushrooms are very flavorful, they have a natural umami. So for this dish today, I’m using three kinds: baby portobello, king oyster, and shiitake, which are the most ...