- 2 tbsp olive oil
- ½ onion, finely sliced
- 1 tbsp Dijon mustard
- 75ml/2½fl oz double cream
- salt and freshly ground black pepper
- 1 tbsp butter
- 150g/5½oz cooked new potatoes, sliced
- 1 tbsp chopped fresh chives
- 3-4 asparagus spears, trimmed
- 1 free-range egg
- Heat one tablespoon of olive oil in a non-stick frying pan and gently fry the onion until soft but not coloured.
- Add the mustard and cream and simmer for 2-3 minutes. Season, to taste, with salt and freshly ground black pepper and whisk in the butter.
- Stir in the sliced potatoes and chives.
- Drizzle the asparagus spears with the remaining olive oil and heat a griddle pan. Griddle the asparagus for 3-4 minutes, or until just tender and charred.
- Bring a saucepan of salted water to the boil and crack in the egg. Reduce to a simmer and poach the egg for four minutes. Remove from the pan with a slotted spoon and drain on kitchen paper.
- To serve, place the potato salad onto a plate and top with the asparagus and poached egg.