Green garlic, which greatly resembles an overgrown scallion, has a mild flavor. Heads of fresh garlic are mature but just harvested. Because they haven't been cured for winter storage, they're very juicy. If you can't find either type of garlic, substitute scallions for the green garlic and regular (cured) garlic for the fresh. The soup will still be delicious.
Source: Martha Stewart Living, March 2012
Prep Time 15 minutes
Total Time 3 hours
Yield Makes 6 cups
3 to 4 heads fresh garlic (enough for 3 tablespoons)
1/4 cup extra-virgin olive oil, plus more for drizzling
2 cups low-fat plain yogurt
6 to 10 green garlic stems, trimmed and cut into 1/4-inch slices (1 cup)
1 1/2 cups low-sodium chicken broth
1/2 pound baby spinach (6 packed cups)
1/4 cup fresh basil leaves, plus small leaves for garnish
1 tablespoon plus 1 teaspoon fresh lemon juice
Preheat oven to 400 degrees. Place fresh garlic heads on parchment-lined foil, drizzle with oil, and season with salt. Wrap in foil, and roast until tender, about 40 minutes. Let cool, then squeeze out garlic, discarding skins. Place 1/4 cup yogurt in a bowl, and stir in 2 teaspoons roasted garlic.
Heat oil in a medium saucepan over medium-high heat, and saute green garlic until translucent, about 3 minutes. Add broth, and bring to a boil. Reduce heat, and simmer 5 minutes. Let cool.
Transfer broth mixture to a blender. Add remaining yogurt and half the spinach, and puree. Add remaining spinach, the basil, and 2 tablespoons roasted garlic (reserve remainder for another use), and puree. Add lemon juice, and season with salt. Refrigerate at least 2 hours and up to 1 day. Before serving, top with a little roasted-garlic yogurt and basil.