Pumpkin and cinnamon cheesecake

Ingredients

• 1 1/4 cup crushed ginger nut or arrowroot biscuits
• 1/4 cup caster sugar
• 100 gram butter, melted
• Filling
• 2 250g packets cream cheese, at room temperature, chopped
• 1 1/4 cup caster sugar
• 4 eggs
• 1 cup cooked, mashed pumpkin
• 1/4 cup plain flour
• 2 teaspoon ground cinnamon, plus extra to serve
• 2 teaspoon vanilla extract