1. Preheat oven to moderate 180°C. Roll level teaspoons of chilled Basic Biscuit Dough into balls and place on prepared trays. Press down with a fork which has been dipped in cold water to prevent sticking.
2. Bake for 12 minutes, until just beginning to colour. Cool on a wire rack before storing in an airtight container.
3. Meanwhile, make Lemon Butter. Place all ingredients in a heavy based saucepan on medium heat. Stir constantly for 5-10 minutes, until thick. Do not allow to boil as the mixture will curdle. Remove from heat and cool completely, stirring occasionally.
4. Just before serving, join biscuits in pairs with ½ teaspoon of Lemon Butter between each.
Store the biscuits in an airtight container, the butter in the fridge and join only as many as you intend to use at a time.