1/2 cup extra-virgin olive oil
1 large yellow onion, finely chopped
1 small fennel bulb, halved, cored and diced
1 teaspoon grated lemon zest
1/2 cup pine nuts
1 cup long-grain rice
1 1/2 cups chicken stock
2 tablespoons finely chopped dill leaves
1/4 cup finely chopped flat-leaf parsley
Kosher salt and freshly ground black pepper
1 (8-ounce) jar grape leaves, rinsed and drained
2 lemons, juiced