Karashina. Mustard greens.
Top is purple, and they are green under.
It’s blanching the greens : passing them in boiling water, then refreshing in ice-cold water so they keep the green and lose bitterness.
The sauce is sesame paste, plus hot chili and a little salt.
They have a not too strong taste, like young spinach.
But, but… they keep the green and where is the purple ? As you can see it leaks into the water.
When you boil veggies you get the nutrients leaving into the water they say, and you lose the precious vitamins.
I don’t as I boil my veggies in the water that will become my soup. That’s why today’s miso soup has its uncanny shades. The water was purple.