Celeriac, Fennel, and Apple Chowder | America's Test Kitchen

Ingredients

• 2 tablespoons unsalted butter
• 1 onion , cut into ½-inch pieces
• 1 fennel bulb , 1 tablespoon fronds minced, stalks discarded, bulb halved, cored, and cut into ½-inch pieces
• Salt and pepper
• 6 garlic cloves , minced
• 2 teaspoons minced fresh thyme or ¾ teaspoon dried
• 2 tablespoons all-purpose flour
• 1/2 cup dry white wine
• 4 cups vegetable broth
• 1 1/2 cups water
• 1 celery root (14 ounces), peeled and cut into ½-inch pieces
• 12 ounces red potatoes , unpeeled, cut into ½-inch pieces
• 1 Golden Delicious apple , peeled and shredded
• 1 bay leaf
• 1 (3-inch) strip orange zest
• 1/4 cup heavy cream