Avocado and lemon salad

Cut the lemon in half. Squeeze one half into a small jug for the dressing. Cut the other half in two, then slice as thinly as you can manage.

Quarter the avocadoes, discarding the stones, then slice.

Mix the salt, sugar and ginger into the lemon juice, then gradually whisk in the olive oil.

Arrange the spinach on a platter or 4 serving plates. Scatter over the avocado and lemon slices.

Drizzle over the dressing and serve at once.