Citrus curd tart

Ingredients

• 1 1/2 cup plain flour
• 1/3 cup icing sugar
• 125 gram cold butter, chopped
• 1 egg yolk
• caramelised citrus fruit slices (see tip), whipped cream, to serve
• Filling
• 3 eggs
• 2 tablespoon caster sugar
• 1/2 lemon, finely grated zest and juice
• 1/2 lime, finely grated zest and juice
• 1/2 orange, finely grated zest and juice
• 3/4 cup thickened cream