For the orange tea bakery, cream butter, sugar, eggs and yolks until very fluffy. Fold in vanilla, lemon zest and flour.
Use a pastry bag to pipe small biscuits from the mixture onto a greased baking sheet.
Bake the biscuits in the oven until very light and allow to cool.
Assemble two biscuits each with orange marmalade and drizzle chocolate glaze over them.