- 2-3 slices sourdough bread, depending on size
- 1 tsp olive oil
- 1 garlic clove, peeled
- 2 heads Cos lettuce, leaves separated and torn
- 1 tbsp finely grated parmesan cheese
- 1 free-range egg yolk
- 4 anchovies in olive oil, drained, oil reserved
- ½ garlic clove, grated
- ½ lemon, juice and zest
- 1 tsp Dijon mustard
- 25g/1oz Parmesan, finely grated
- 2 tbsp extra-virgin olive oil
- black pepper
- Heat a griddle pan over a high heat until smoking. Drizzle the bread with a little oil and then rub with the garlic clove.
- Griddle the bread for 30-40 seconds on each side, or until golden-brown and crisp with deep char-grill lines. Leave to cool slightly and then tear into bite-sized pieces.
- Meanwhile make the dressing. Put the egg yolk, anchovies, a tablespoon of the reserved anchovy oil, the garlic, lemon zest and juice, mustard and parmesan into a small food processor along with a pinch or two of pepper. Blend to a paste. (Alternatively, chop everything really fine, and mash into a paste in a mixing bowl until as smooth as possible.)
- With the motor running gradually trickle in the oil, a few drops at a time, until completely incorporated. If the dressing is too thick, add a little warm water (about two tablespoons) and blend again. Season to taste with black pepper.
- Put the lettuce into a serving bowl. Pour over some of the dressing and toss to mix and coat. Scatter over the croûtons and the grated parmesan and serve.