Step 1

In a large Dutch oven over medium, toast the almonds, stirring occasionally, until lightly browned and fragrant, 5 to 6 minutes. Dump about half of the almonds into a small bowl and reserve for garnish.

Step 2

Add the butter to the remaining almonds in the Dutch oven. When melted, add the shallots and pepper flakes, then increase to medium-high and cook, stirring occasionally, until the shallots are lightly browned, 2 to 3 minutes.

Step 3

Add 1 cup water, 1/2 teaspoon salt, and 1/4 teaspoon black pepper, then bring to a boil. Stir in the beans, cover, and cook, stirring occasionally, until tender-crisp, 4 to 6 minutes.

Step 4

Uncover and cook, stirring occasionally, until the moisture evaporates and the beans begin to sizzle, 5 to 7 minutes.

Step 5

Remove from the heat, stir in the lemon zest and juice, then taste and season with salt and pepper. Move to a serving dish and sprinkle with the reserved almonds. Garnish with chopped fresh chives and/or a drizzle of toasted walnut oil, if desired.