• 2 slices sourdough, cut into 1cm cubes

• 3 tbsp olive oil

• ½ roast chicken

• 2 heads baby cos lettuce, roughly chopped

• 80g good-quality, off-the-bone leg ham, diced

• 8 cherry tomatoes, halved

• 1 cup coarsely grated gruyere

• ½ red onion, thinly sliced

FRENCH DRESSING

• 3 tbsp white wine vinegar

• 1 tbsp Dijon mustard

• ½ tsp caster sugar

• ½ cup olive oil

• salt and black pepper, to season