Mandarin and sultana cheesecake

Ingredients

• 1 sheet sweet short pastry
• 2 teaspoon caster sugar
• 500 gram cream cheese
• 3/4 cup caster sugar
• 2 tablespoon brown sugar
• 1 heaped tablespoon plain flour (gluten-free is fine)
• 3 large eggs
• 1/4 cup cream
• 2 tablespoon brandy
• zest of 4 mandarins, plus juice from 2 mandarins
• 1/2 cup sultanas
• Topping
• 1-2 mandarins, thinly sliced, to garnish
• olive oil, for brushing
• 1/3 cup sugar
• juice from remaining 2 mandarins