Decorate with extra orange zest if you like. Serve with lots of cream, ice cream or custard. You can leave out the orange zest and use an ordinary milk chocolate for the topping if you prefer.

It is not overly sweet. This recipe has just the right amount of sweetness, with the tanginess of cream cheese and the freshness of orange zest shining through. It is super easy to make.

Cream the soft butter and gradually add the caster sugar. Whisk until soft and light and quite pale. Add the orange zest followed by the eggs one at a time, whisking well between each addition.

Use a large wooden spoon and large mixing bowl (or a stand mixer fitted with paddle attachment, on low speed) to cream butter with both types of sugar and orange zest until creamy, but not too ...