SERVES 4
IN LIGHT STEWS like this one, Onion Puree becomes a really valuable addition. I fold it in at the end to pull all the disparate ingredients together and give the dish depth.
1 cup packed fresh basil
1 cup fresh flat-leaf parsley
1 large clove garlic
3 tablespoons grated Parmigiano
2 tablespoons Onion Puree (here)
½ cup plus 2 tablespoons olive oil
Salt and pepper
4 cipollini onions, quartered
2 zucchini, cored and cut into ⅓-inch dice
1 cup cooked shell beans
4 cups Shrimp Stock (here)
¾ pound large shrimp, peeled, deveined, and cut into thirds (peelings saved for stock)
3 plum tomatoes, roughly chopped
Blanch the basil and parsley in a pot of salted boiling water for 15 seconds, then shock in a bowl of ice water. Combine the basil, parsley, garlic, cheese, onion puree, and ½ cup of the oil in a blender and puree until smooth. Add salt and pepper, then set the pesto aside.
Heat the remaining 2 tablespoons oil in a medium saucepan over medium-high heat. Add the onions and cook until softened, about 3 minutes. Add the zucchini, beans, and stock and simmer until the zucchini are tender, about 5 minutes.
Add the shrimp and tomatoes and simmer until just cooked through, about 3 minutes. Stir in 3 tablespoons of the pesto, check the seasonings, then serve in bowls.