Created by QueenBea on October 14, 2013
Step 1: Wipe the portobello mushrooms and remove the gills and stems. Place the mushrooms, flesh side down and set aside.
Step 2: Mix together the butter, Worcestershire sauce, garlic powder and dried thyme in a small bowl.
Step 3: Divide this mixture evenly among the 2 mushrooms and pour into the mushrooms.
Step 4: Grill flesh side down, on a pre-heated medium-high BBQ for about 5 minutes, until just starts to soften.
Step 5: Season with salt and pepper and serve.