1. Peel the lemon with a small knife, taking care to remove all of the white pith. Remove any seeds and finely chop the flesh. Place in a small food processor and add the oil, anchovy fillets, garlic and chilli. Process until well combined. With the motor running, gradually add the milk, about one tablespoon at a time. If you add the milk too quickly, the dressing may split. When all the milk is incorporated, add about one tablespoon of warm water so the dressing is a pouring consistency.

2. Bring a saucepan of salted water to the boil. Blanch the beans until tender to the bite. Drain and refresh in iced water. Drain again and trim the beans. Dress with olive oil and season to taste with salt and pepper.

3. Place a little of the dressing in the base of a large shallow salad bowl,  pile the beans on top, spoon over the remaining dressing and scatter over the almonds.