Name: Caramel Biscuits (Alfajores)
Yield: 18
Cuisine: Argentinean
Ingredients: 100g plain flour; 150g cornflour; 1/2 tsp bicarbonate of soda; 1 tsp baking powder; 120g unsalted butter, softened; 75g caster sugar; 2 egg yolks; 1/2 tsp vanilla extract; 1 tbsp milk; 150g dulce de leche