Good-Cooking - Pumpkin Cheesecake with Bourbon Sour Cream

Ingredients

• 3/4 cup graham cracker crumbs
• 1/2 cup finely chopped pecans
• 1/4 cup firmly packed light brown sugar
• 1/4 cup granulated sugar
• 1/4 cup unsalted butter, melted and cooled
• 1 1/2 cups canned pumpkin
• 3 eggs
• 1 1/2 teaspoons ground cinnamon
• 1/2 teaspoon freshly grated nutmeg
• 1/2 teaspoon ground ginger
• 1/2 teaspoon salt
• 1/2 cup firmly packed light brown sugar
• 24 ounces cream cheese, cut into bits and softened
• 1/2 cup granulated sugar
• 2 tablespoons whipping cream
• 1 tablespoon cornstarch
• 1 teaspoon vanilla extract
• 1 tablespoon bourbon liqueur or bourbon (optional)
• 2 cups sour cream
• 2 tablespoons granulated sugar
• 1 tablespoon bourbon liqueur or bourbon, or to taste
• 16 pecan halves (for garnish)