Step 1: Prepare the Crust

1. Preheat your oven to 350°F (175°C).
2. In a mixing bowl, combine the graham cracker crumbs, sugar, and melted butter. Mix until the crumbs are evenly coated.
3. Press the mixture firmly into the bottom of a 9-inch springform pan.
4. Bake for 10 minutes, then let it cool while you prepare the filling.

Step 2: Make the Cheesecake Filling

1. In a large bowl, beat the cream cheese and sugar until smooth and fluffy.
2. Add the eggs, one at a time, mixing well after each addition.
3. Beat in the sour cream, orange juice, orange zest, and vanilla extract until fully incorporated.
4. Pour the filling over the cooled crust and smooth the top with a spatula.

Step 3: Bake the Cheesecake

1. Optional: Wrap the bottom of the springform pan with aluminum foil and place it in a water bath to prevent cracks.
2. Bake at 350°F (175°C) for 55-65 minutes, or until the center is set but slightly jiggly.
3. Turn off the oven and let the cheesecake cool inside with the door ajar for 1 hour.
4. Remove from the oven and refrigerate for at least 4 hours, preferably overnight.

Step 4: Make the Cranberry Topping

1. In a small saucepan, combine the cranberries, sugar, orange juice, and orange zest.
2. Cook over medium heat, stirring occasionally, until the cranberries burst and the mixture thickens (about 10 minutes).
3. Let the topping cool to room temperature, then spread it over the chilled cheesecake.