01 - Line the base of a 9-inch springform pan with parchment paper, ensuring it lies flat against the bottom.
02 - Combine the crushed graham crackers and melted butter in a medium bowl until the mixture resembles wet sand. Press firmly and evenly into the bottom of the prepared pan to form a compact crust. Place in the refrigerator to chill while making the filling.
03 - In a large bowl, beat the softened cream cheese with powdered sugar and vanilla extract using an electric mixer until completely smooth and lump-free.
04 - Pour in the full-fat coconut milk and continue beating until the mixture is uniform and well blended.
05 - Gently fold in the chopped pineapple tidbits and desiccated coconut using a rubber spatula, distributing them evenly throughout the mixture.
06 - In a separate chilled bowl, whip the cold heavy cream until stiff peaks hold their shape. Carefully fold the whipped cream into the pineapple-coconut mixture in three additions, preserving as much air as possible.
07 - Pour the filling over the chilled crust and spread into an even layer. Smooth the surface with an offset spatula or the back of a spoon.
08 - Cover the pan tightly with plastic wrap and refrigerate for at least 4 hours, or preferably overnight, until the filling is firm and fully set.
09 - Before serving, release the springform ring and decorate the top with toasted coconut flakes and fresh pineapple slices or tidbits. Slice with a warm knife for clean portions.