Preheat your oven to 325°F and grease a 9-inch springform pan. Wrap the pan with two layers of heavy-duty foil to prevent leaks during the water bath. Crush the Oreos finely, mix with melted butter and a pinch of salt, then press into the pan evenly.
In a large bowl, beat the softened cream cheese with sugar until smooth. Add Greek yogurt, vanilla, and eggs one at a time, mixing gently to avoid overbeating. Pour the filling over the crust and smooth the top with a spatula.
Place the cheesecake in a water bath for even baking and to prevent cracks. Bake for about 90 minutes until the center is just set. Turn off the oven and allow it to cool inside for a few minutes before removing the water bath.
Toast the shredded coconut until golden brown for a richer flavor. Mix the toasted coconut with caramel sauce, then spread generously over the cooled cheesecake. Drizzle melted dark chocolate on top for that iconic Samoa finish.
Refrigerate the cheesecake for at least 4 hours or overnight. This helps the flavors meld and makes slicing clean and easy.