Celery Root Salad with Apples and Parsley

Name: Celery Root Salad with Apples and Parsley
Ingredients: 3⁄4 cup extra-virgin olive oil; 2 1⁄2 oz. sourdough bread, cut into 1/4-inch cubes; 2 1⁄2 tsp. kosher salt, plus more; 1⁄4 cup fresh lemon juice; 1⁄4 cup mayonnaise; 1 tbsp. maple syrup; 1⁄4 habanero chile, stemmed, seeded, and minced; 1 lb. celery root, peeled and julienned; 2 cups lightly packed flat-leaf parsley leaves; 2 medium tart apples, cored and julienned; 1 tbsp. roughly chopped tarragon; Finely grated zest of 2 lemons, preferably Meyer; Freshly ground black pepper