Edna's lemon curd tea cakes

Lemon curd

• 60 g lemon juice
• 60 g unsalted butter
• 100 g white sugar
• 1 egg
• 1 pinch sea salt

Cake

• oil spray, to grease
• 150 g self-raising flour
• 60 g unsalted butter, cut into pieces
• 1 sprig fresh lemon thyme, leaves only, plus extra to serve (optional)
• 100 g white sugar
• 1 egg
• whipped cream, to serve