Basic cheesecake

Shortcrust pastry

• 85 g unsalted butter, softened and cut into pieces, plus extra to grease
• 220 g plain flour
• 100 g white sugar
• 1 egg
• 1 tsp baking powder
• 1 pinch sea salt

Cheesecake

• 250 g caster sugar
• 1000 g cream cheese, softened and cut into pieces
• 4 eggs
• 1 lemon, zested and juiced
• 200 g sour cream
• 2 tbsp cornflour