Prepare the pan: Line the base of your springform pan with parchment paper. Lightly grease the sides for easier release.
Make the crust: Mix crushed biscuits, melted butter, sugar (if using), and a pinch of salt.
Press firmly into the pan base with the bottom of a glass. Chill for 15–20 minutes to set.
Bloom the gelatin (filling): Sprinkle powdered gelatin over 3 tbsp cold water. Let it sit 5–10 minutes until spongy.
If using sheets, soak in cold water until soft, then squeeze out excess.
Blend the mango: Puree ripe mango flesh until smooth. Strain if you want an extra silky texture. Taste and adjust sweetness with a little sugar if needed.
Whip the cream: In a cold bowl, whip heavy cream to soft peaks.
Do not overbeat. Set aside in the fridge.
Make the cream cheese base: Beat cream cheese, sugar, vanilla, lemon or lime juice, and a pinch of salt until smooth and fluffy, about 2–3 minutes. Scrape down the bowl.
Warm and dissolve gelatin: Gently heat the bloomed gelatin in the microwave for 10–15 seconds or over a hot water bath until just melted.
Do not boil.
Stabilize with mango: Stir 2–3 tablespoons of mango puree into the warm gelatin to cool and loosen it. Then whisk this mixture back into the rest of the mango puree.
Combine: Fold the mango-gelatin puree into the cream cheese mixture until fully blended and smooth.
Lighten the filling: Gently fold in the whipped cream in two additions until no streaks remain. The mixture should be airy but cohesive.
Fill the pan: Pour the filling over the chilled crust.
Smooth the top with an offset spatula. Tap the pan lightly to release air bubbles.
Chill to set: Cover and refrigerate for at least 6 hours, ideally overnight, until the center is firm and jiggly but not liquid.
Make the topping (optional): Bloom 1 tsp gelatin in 1 tbsp cold water (if using). Warm mango puree with sugar/honey and lime juice over low heat until the sugar dissolves.
Off the heat, stir in the melted gelatin. Let it cool to room temperature.
Add the topping: Pour the cooled mango topping over the set cheesecake. Tilt to level.
Chill another 1–2 hours until the topping is set.
Unmold and serve: Run a thin knife around the edge. Release the springform ring. Garnish with fresh mango, mint, coconut, or lime zest.
Slice with a warm knife for clean cuts.