Beat the heat with this refreshing and creamy lemon curd ice cream. The ice cream base is made by whisking together heavy cream, milk, sugar, and vanilla extract until the sugar is dissolved. Stir in the lemon curd until well combined, then transfer the mixture to an ice cream maker and churn according to the manufacturer's instructions. Once churned, transfer the ice cream to a lidded container and freeze until firm. This lemon curd ice cream is a perfect balance of sweet and tangy flavors, making it a delightful treat on a hot summer day.