Begin this simple, distinctive side dish by roasting leeks, which mellows them and brings out their sweet side. Give them a drizzle of citrus vinaigrette, and sprinkle on toasted hazelnuts for a pleasant crunch. As a garnish, grated egg yolks are called mimosa (named for the yellow mimosa flower); we use the whites as well, to finish the dish. This recipe is a hearty side dish for four. Store extra vinaigrette in the refrigerator up to three weeks. Adrienne demoed this as part of allium month, May 2016. Recipe adapted from Martha Stewart.
4 large leeks (2 pounds), white and pale-green parts only, halved lengthwise and rinsed well
Coarse salt and freshly ground pepper
2 eggs, hardboiled and cooled
1 t Dijon mustard
2 t finely grated orange zest, plus more for garnish
3 T fresh orange juice
1 T fresh lemon juice
1 T minced shallot
3 T extra-virgin olive oil, plus more for brushing
1 ounce (¼ cup) skinless hazelnuts, toasted and chopped
Preheat oven to 400 degrees. Arrange leeks on a rimmed baking sheet, and brush generously with oil. Season with salt and pepper. Roast, flipping once, until tender and gold, about 20 minutes. Let cool slightly on sheet. Halve eggs and remove yolks. Finely grate whites on the medium holes of a box grater; place in a small bowl. Grate or crumble yolks; place in another small bowl. Whisk together mustard, orange zest and juice, lemon juice, and shallot. Slowly add oil, whisking until emulsified. Season with salt and pepper. Arrange leeks on a platter. Scatter whites and yolks on top. Drizzle with vinaigrette. Sprinkle with hazelnuts, and garnish with orange zest. Serve immediately.