Foil yaki, also known as hoiru yaki (ホイル焼き), is a popular home-cooking technique in Japan. It’s essentially the same as the western-style foil packet dinners where the plain-but-genius aluminum foil is used as a cooking tool. If you have tried my Salmon In Foil, you’re going to love this Miso Butter Mushrooms in Foil (きのこのホイル焼き)! In this recipe, assorted Japanese mushrooms are wrapped in foil and infused with umami-rich seasonings like miso, butter, sake, and soy sauce. The juices of the mushrooms are sealed in, resulting in a moist and velvety texture that is hard to resist. Serve it with steamed rice, and you have a simple yet satisfying one-foil meal, ready in minutes!
Why You’ll Enjoy Mushrooms in Foil
A quick and effortless recipe – The foil packet is used as both a cookware and serveware for easy cooking and cleanup. It’s truly a “one and done” technique. So flavorful – The steam inside the foil packets retain freshness, moisture, and flavors. Easily adaptable – For more substance, you can also throw in some other vegetables or fish. I keep mine simple as I want to enjoy the succulent, earthy flavor of the Japanese mushrooms. Butter adds a sweet richness to the dish, but you can omit or use vegan butter for a vegan version.
Miso Butter Seasonings
In Japanese cooking, salty condiments like soy sauce and miso often go together with sweet and creamy butter. The combination brings out the best flavor!
A Perfect Miso for Mushrooms in Foil
If you are going to get one tub of miso, I highly recommend finding Kodawattemasu by Hikari Miso. It’s been the No. 1 organic miso for a long time (see that label on the tab?). You can find this brand of miso at Japanese/Korean/Chinese grocery stores. I’ve been using it for 15 years or more. It’s my go-to miso for a lot of recipes I have on the website.
How to Make Miso Butter Mushrooms in Foil
Ingredients You’ll Need
OnionJapanese mushrooms: enoki, king oyster (trumpet), maitake, shimeji, shiitakeCondiments: miso, sake, butter, soy sauceGarnish (optional): chives, green onions, etc.
Overview: Cooking Process
Make the miso sauce.Slice the onion. Discard the bottom of mushrooms and cut them into bite size pieces, if needed.Apply butter on the foil and place in the order of sliced onion and mushrooms (pretty ones on top).Cook in the frying pan or oven until mushrooms are tender, about 10-20 minutes, depending on how big your packets are.Drizzle soy sauce and enjoy!
Cooking Notes
In Japan, aluminum foil is commonly used, but it can be done with parchment paper. Typically, seasonings are added into the foil before cooking, but occasionally, additional seasonings can be drizzled over the ingredients after being cooked, like soy sauce in this recipe or ponzu in my Salmon in Foil recipe.
What to Serve with Miso Butter Mushrooms
Vegetarian Dishes
Japanese Sweet Potato RiceGluten-Free Korean Veggie PancakeChrysanthemum Greens and Tofu Salad (Shungiku Shiraae)Soy-Glazed Eggplant DonburiLily Bulb TamagotojiVegetable Gyoza
Additional Meat and Seafood Dishes
Carrot Beef RollsKaraage (Japanese Fried Chicken)Teriyaki SalmonKabocha Pork Stir FryGinger Pork (Shogayaki)Nikujaga (Japanese Meat and Potato Stew)Shio Koji Salmon
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