Step 1: Prepare the Crust

1. Preheat your oven to 325°F (160°C).
2. In a medium mixing bowl, combine the graham cracker crumbs and sugar.
3. Pour the melted butter over the mixture and stir until well combined.
4. Press the crust mixture firmly into the bottom of a 9-inch springform pan. Use the bottom of a glass or a measuring cup to ensure an even layer.
5. Bake the crust for 8-10 minutes, then set it aside to cool while you prepare the filling.

Step 2: Make the Cheesecake Filling

1. In a large mixing bowl, beat the cream cheese and sugar together until smooth and creamy, about 2-3 minutes.
2. Add the vanilla extract and mix until incorporated.
3. Beat in the eggs one at a time, ensuring each is fully mixed before adding the next.
4. Stir in the sour cream and mango puree until smooth. Be careful not to overmix to avoid incorporating too much air.
5. Pour the filling over the prepared crust and smooth the top with a spatula.

Step 3: Bake the Cheesecake

1. Wrap the bottom of the springform pan with aluminum foil to prevent water leakage. Place the pan into a larger baking dish and fill the dish with hot water until it reaches halfway up the sides of the springform pan (water bath method).
2. Bake for 60-70 minutes, or until the edges are set, but the center still has a slight wobble.
3. Turn off the oven and leave the cheesecake inside with the door slightly open for 1 hour to gradually cool.

Step 4: Prepare the Mango Glaze

1. In a small saucepan, combine the mango puree and sugar over medium heat. Stir until the sugar dissolves.
2. Add the cornstarch slurry and continue stirring until the glaze thickens, about 2-3 minutes.
3. Remove from heat and let it cool to room temperature.

Step 5: Assemble and Chill

1. Once the cheesecake has cooled, pour the mango glaze over the top, spreading it evenly.
2. Cover the cheesecake with plastic wrap and refrigerate for at least 6 hours or overnight.

Step 6: Garnish and Serve

1. Carefully remove the springform pan ring.
2. Garnish with fresh mango slices, mint leaves, whipped cream, or toasted coconut flakes if desired.
3. Slice with a sharp knife (wiping it clean between cuts) and serve chilled.