Asparagus with an Orange Mascarpone Dressing

Mix together the crème fraîche and mascarpone cheese until smooth. Finely grate a teaspoon of orange zest and halve and juice the oranges. Boil the juice and zest together in a pan until just a quarter of the liquid remains. Stir the zesty juice into the mascarpone cream and season well with a pinch of salt and twist of pepper.

Snap the woody end from each