No-bake Gingerbread Cheesecake

90g unsalted butter

300g gingernut biscuits

For the filling:

750g full-fat soft cheese, at room temperature

75g icing sugar

1 tsp vanilla extract

2 tsp ground ginger

½ tsp ground cinnamon

300ml double cream

For decoration:

150ml double cream

2 tbsp icing sugar

Gingerbread cookies

Gingerbread cookie crumbs