Yo-Yo Biscuits

Ingredients

125g unsalted butter 1/2 cup caster sugar 2 egg yolks, lightly beaten 1 teaspoon vanilla extract 1/4 cup custard powder 3/4 cup plain flour 1/2 cup self-raising flour Filling (see below)

Method Preheat oven to 180 C. Line base of a baking tray with baking paper. In a bowl, cream together butter and sugar. Add yolks and vanilla. Mix. Sift together custard powder and flours and add to butter mixture. Combine well. Shape tablespoons of mixture into balls. Place on tray and lightly flatten with a fork. Bake 12 min, or until lightly browned. Transfer to a wire rack to cool. Sandwich together biscuits with a small amount of filling. Dust with icing sugar, to serve. Filling To make filling, place 40g softened butter into a bowl. Add 1/2 cup icing sugar and 1 teaspoon orange zest and mix well, adding extra icing sugar, if needed