In order to achieve a scallop-like texture, the tough mushroom stems need to first be soaked in hot water. I recommend soaking for a minimum of 30 minutes or up to 1 hour. You can bring water to a boil on the stove top or use a tea kettle (which I prefer). u003cbr/u003eTo infuse these scallops with even more flavor consider soaking the mushroom stems in vegetable broth. If you don't follow a strict vegan diet, you could even try seafood stock.