- 25g/1oz unsalted butter
- 2 tbsp olive oil
- 3 sprigs rosemary
- 4 cloves garlic, crushed
- 250g/9oz new potatoes, par-boiled and sliced in half
- salt and freshly ground black pepper
- 50ml/2fl oz olive oil
- 1 lemon, juice only
- 1 tbsp wholegrain mustard
- ½ tsp caster sugar
- 1 tsp red wine vinegar
- 100g/3½oz anchovy fillets
- 25g/1oz flatleaf parsley
- salt and freshly ground black pepper
- Preheat the oven to 200C/400F/Gas 6.
- To make the potatoes, melt the butter with the olive oil in a large frying pan.
- Add the rosemary, garlic and potatoes, toss together and season well with salt and freshly ground black pepper.
- Place in the oven and roast for 15 minutes.
- To make the dressing, place all of the dressing ingredients into a hand blender, season with salt and freshly ground black pepper and blend together.
- Serve the potatoes in a warm bowl and spoon over the dressing.