Bourbon Pecan Pie

Bahan-bahan (8 porsi)

• 2 cups pecan halves (about 8 ounces, divided)
• 1 unbaked pie crust
• 6 tablespoons unsalted butter (melted and cooled)
• 3 large eggs (at room temperature)
• ¾ cup pure maple syrup
• ½ cup light brown sugar
• 2 ½ tablespoons bourbon
• 1 tablespoon pure vanilla extract
• ¼ teaspoon kosher salt
• 2 tablespoons all-purpose flour
• Flaky salt (such as Maldon or fleur de sel)
• Whipped cream or vanilla ice cream (optional for serving)