Ingredients
- ½ cup + 2 Tbsp unsalted butter, room temperature
- ½ cup + 2 Tbsp icing sugar, sifted
- 1 hard-boiled large eggs yolk
- 1 large egg yolk
- ½ tsp vanilla extract
- 1 ¾ cups cake & pastry flour, sifted
- ¼ tsp salt
Method
- Beat the butter and icing sugar together until smooth.
- Push the hard-boiled egg yolk through a sieve and stir the raw egg yolk and vanilla into it. Add this to the butter mixture and stir until blended.
- Add the flour and salt to the butter mixture and stir until blended. Shape the dough into a disc (it will be very soft), wrap in plastic and chill until firm, about 2 hours.
- The dough can be prepared and frozen for up to 3 months. Thaw in the fridge before using.