Good-Cooking - Marx Brothers Cheesecake

Ingredients

• 1/4 cup plus 2 tablespoons (3/4 stick) unsalted butter, at room temperature
• 1/2 plus 1 tablespoon toasted pecans (about 2 ounce) finely ground
• 2 cup graham cracker crumbs
• 48 ounces cream cheese, at room temperature
• 2 cups granulated sugar
• 2 large eggs
• 3 large egg yolks
• 2 teaspoons vanilla extract
• 1/2 cup sour cream