Combine graham cracker crumbs, sugar, and melted butter.

Mix well.

Press mixture into the bottom of a 10-inch springform pan.

Chill the crust.

In a separate bowl, beat softened cream cheese until smooth.

Gradually add brown sugar, mixing until well combined.

Beat in eggs one at a time, then stir in vanilla extract.

Fold in chopped pecans.

Pour the cream cheese mixture over the chilled crust.

Bake in a preheated oven at 350°F (175°C) for 50-60 minutes, or until the center is almost set.

Let cool completely, then chill for at least 4 hours before serving.

Garnish with whipped cream and additional pecans, if desired.