Pumpkin Spiced Latte Cheesecake

Name: Pumpkin Spiced Latte Cheesecake
Ingredients: 60 g unsalted butter, melted, plus extra to grease; 200 g gingernut biscuits; 1 1/2 tsp. instant coffee granules; 350 g full-fat cream cheese; 150 g caster sugar; 425 g tin pumpkin purée; 225 mL soured cream; 2 tsp. vanilla bean paste; 1 1/2 tsp. ground cinnamon; 3/4 tsp. ground ginger; 1/2 tsp. ground nutmeg; 3 medium eggs, at room temperature; 200 mL double cream; 25 g icing sugar, sifted; 60 mL coffee liqueur, we used Tia Maria; Ground coffee or cinnamon, to sprinkle