ingredients:
- 100 g sweet potato
- 1/2 package shimeji mushrooms
- 80 g shiitake mushrooms
- 1 tablespoon soy sauce
- 2 teaspoons sake
- 20 g butter 
step 1:
Wash the sweet potato and slice it into 1 cm.-wide pieces. Cut off the roots of the shimeji mushrooms. Wipe the shiitake mushrooms with a wet paper towel. Cut off the stems and slice the caps.
step 2:
Mix the soy sauce and sake in a small bowl.
step 3:
Wrap the shiitake mushrooms, shimeji mushrooms, sweet potato, soy sauce mixture and the butter in two aluminium foil pieces.
step 4:
Put the wrapped ingredients in a frying pan and cover and cook on medium heat for 10 minutes. Remove from the pan and place on a serving plate.
comment:
This dish is more delicious than you might imagine. The buttery tasting mushrooms suit the soft and flaky sweet potatoes very well. Because this recipe is so easy, please try it.