2 tablespoons cider vinegar |
1 tablespoon extra-virgin olive oil |
1 1/2 teaspoons sugar |
1/4 teaspoon kosher salt |
1/4 teaspoon freshly ground black pepper |
3 cups thinly sliced fennel bulb (about 1 large) |
2 cups thinly sliced granny smith apple (1 large) |
1/4 cup fresh flat-leaf parsley leaves |
1/4 cup slivered red onion |