Portobello mushrooms (also referred to as portabello and portobella) are simply the fully mature version of chestnut mushrooms. These large, dark brown mushrooms have an open cap, with visible, deep brown gills on the underside. Unlike its younger counterpart, the portobello has had more time to grow, causing it to lose more of its moisture. Portabello mushrooms are not as watery as chestnut and have a slightly more pronounced mushroom flavor.
125g equals roughly 2 small/1 large mushroom.
Country of Origin may vary