Melt the butter in a small saucepan or microwave until completely liquid.
Blitz the crackers in a food processor until they form fine crumbs.
Combine the cracker crumbs, melted butter, and grated fresh ginger in a bowl, mixing thoroughly.
Press the crumb mixture firmly into the base of a springform pan, making sure an even layer.
Refrigerate the base while preparing the filling.
Soak the gelatine sheets in cold water for 5 minutes until softened.
In a food processor, blend the cooked beetroot, remaining ginger, and cream cheese until completely smooth.
Heat the liquid cream in a saucepan until it just begins to boil, then remove from heat.
Squeeze excess water from the gelatine sheets and stir them into the hot cream until completely dissolved.
Mix the cream and gelatine mixture with the beetroot and cream cheese mixture until well combined.
Pour the filling over the chilled base, smoothing the top with a spatula.
Refrigerate for at least 12 hours or overnight until completely set.