The Good Stuff: How To Make Nutella Éclairs

Ingredients

• 1 cup plus 2 tablespoons all-purpose flour
• 2 teaspoons sugar
• 1/2 teaspoon sea salt
• 1 cup water
• 1/2 cup unsalted butter
• 4 eggs
• 3/4 cup Nutella or other chocolate-hazelnut spread
• 1 1/2 cups heavy (whipping) cream
• 1/4 teaspoon sea salt
• 3 tablespoons Nutella
• 2 ounces bittersweet chocolate
• 1 tablespoon unsalted butter
• 1/2 cup heavy (whipping) cream
• 1/4 cup finely chopped toasted hazelnuts (optional)