Bring a large pot of water to a boil and add 1 tablespoon salt. Add the string beans and cook for 2 minutes. Drain and then place the string beans in a serving dish.

For the herb butter, placed the scallion, dill, parsley, butter, 1 teaspoon salt and the pepper in a small bowl and combine.

Scoop a generous tablespoon of the herb butter and place it on top of the string beans. Sprinkle with sea salt and serve.

Use any extra herb butter for serving on a steak or in a sandwich.