Makes approximately 2 cups
2 teaspoons cornflour mixed to a paste with 1 tablespoon cold water
finely grated rind and juice of 2 lemons
2 eggs, lightly whisked
¾ cup sugar
125g butter, diced
Mix the cornflour paste with the rest of the ingredients in a small saucepan. Stir with a whisk over low heat until the mixture thickens. Strain through a sieve.
Pour into sterilised jars and seal. Keep in the fridge and use within 2 weeks.