Celeriac Soup with Crispy Lemon Zest

Name: Celeriac Soup with Crispy Lemon Zest
Ingredients: 2 tablespoons olive oil; Zest of 2 lemons, julienned; 3 tablespoons extra-virgin olive oil; 4 shallots, quartered and sliced thinly; 2 large cloves garlic, chopped finely; 1/2 cup dry white wine; 8 ounces white potato, peeled and cut into 1-inch cubes; 1 1/2 pound celeriac, peeled and cut into 1-inch cubes; 4 cups water; 2 cups vegetable stock; 1 1/4 teaspoon sea salt, plus more to taste; Freshly ground black pepper, to taste; Lemon-infused oil, for garnish (optional)