2. Core and slice the apple and place in a bowl. Mix in the lemon juice, to ensure the apple slices do not go brown. Set aside.
3. Slice the blue cheese, chop the walnuts and tear the basil all into small pieces.
4. In a small bowl mix the crème fraîche with olive oil, vinegar, sea salt and pepper. Taste the dressing for seasoning, adding extra if need be.
5. Place the cauliflower, apple, blue cheese and walnut pieces and the crème fraîche dressing in a large salad bowl. Toss the salad well, so that all the ingredients are covered with dressing and serve.
Recipe courtesy of www.loveyourgreens.co.uk