Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Mushrooms and Garlic Grilled in a Packet Be the first to rate & review! By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Servings: 6 Serve this packet hot off the grill, but be cautious when opening it. Ingredients 12 ounces cremini mushrooms, halved if large 6 garlic cloves, peeled ¼ cup coarsely chopped fresh flat-leaf parsley 1 tablespoon finely chopped fresh thyme 3 tablespoons extra-virgin olive oil Coarse salt and freshly ground pepper Directions Preheat a grill to medium (if you are using a charcoal grill, coals are ready when you can hold your hand 5 inches above grill for just 5 to 6 seconds). Cut a piece of heavy-duty foil and a piece of parchment to 12 by 18 inches. Place foil on a work surface; lay parchment on top. Toss mushrooms, garlic, parsley, thyme, and oil in a medium bowl; season with salt and pepper. Mound mushroom mixture in center of parchment, allowing a 3-inch border all around. Hold the long sides of parchment and foil; bring together, and fold twice, creasing to seal firmly. Fold short ends twice, creasing to seal firmly. Grill packet until you hear mushrooms and liquid sizzling, 10 to 15 minutes. Flip packet, and grill until mushrooms are soft, about 15 minutes more. (Press lightly to test tenderness, or unfold center of packet to check, but be careful of steam escaping.) Remove packet, and let stand 5 minutes before serving. Rate it Print