Preparation

• Melt the butter in a 3- to 4-quart saucepan over medium heat. Add the scallion whites, 1/4 tsp. salt, and a few grinds of pepper and cook, stirring often, until tender but not browned, about 5 minutes.
• Add the wine and simmer to reduce by half, about 2 minutes. Add the rice and cook, stirring often, until it begins to crackle, 2 to 3 minutes. Add the broth, lemon zest, and 1 tsp. salt; bring to a boil. Cover and turn the heat down to low. Cook until the rice is tender and the liquid is absorbed, about 15 minutes.
• Remove from the heat and let sit, covered, for 5 minutes. Fluff the scallion greens and lemon juice into the rice with a fork and serve.