Baked cheesecake

Pastry

• 70 g unsalted butter, cut into pieces, plus extra for greasing
• 40 g white sugar
• 2 eggs
• 100 g plain flour
• 1 tsp baking powder

Filling

• 250 g white sugar
• 1 lemon, zest only, no white pith
• 100 g unsalted butter, softened
• 250 g cream cheese, softened and cut into pieces
• 7 eggs, separated
• 40 g lemon juice (approx. 1 lemon)
• 1 tsp lemon essence
• 1 tsp natural almond extract
• ¼ tsp sea salt
• 1000 g smooth ricotta cheese
• 70 g cornflour
• ¼ tsp cream of tartar

Lemon icing

• 100 g icing sugar
• 30 g lemon juice
• fresh blueberries, for garnishing