• Salt and freshly ground black pepper, to taste
• Parsley or pea shoots for garnish, optional
To cook the grain: Bring 3 cups lightly salted water to a boil and add the farro (or barley). Reduce the heat to a simmer, cover and cook until the grain is tender, about 20 to 25 minutes for farro (up to 40 minutes for barley). Drain off any excess water before serving.
To cook mushrooms: Heat a wide skillet over medium heat and add the butter, swirling the pan. When the butter begins to sizzle, add the mushrooms and herbs and stir, then cover the pan. Cook until the mushrooms release their juices, about 3 to 5 minutes.
Remove the lid, reduce the heat and continue cooking and stirring gently, until the liquid is reduced to a glaze, about 2 to 4 minutes. Stir in the wine and simmer until the liquid is reduced to a thick sauce, about 2 to 4 minutes. Season to taste with salt and pepper and serve atop the farro, garnished with a few pea shoots or fresh parsley.