•   3 cups cooked potatoes, sliced
  •   1 1/2 large cucumbers, peeled and seeded
  •   6 tablespoons olive oil
  •   2 tablespoons vinegar
  •   Salt and pepper to taste
  •   3/4 cup mayonnaise
  •   3 tablespoons heavy cream
  •   3 tablespoons finely chopped onion
  •   1 tablespoon chopped basil
  •   1 teaspoon lemon juice

Toss the potatoes and cucumbers together in a bowl. 

Blend together the oil and vinegar and season well with salt and pepper. 

Pour over the potato mixture, cover and chill for at least 2 hours. 

Blend together the remaining ingredients and toss with the potato mixture. 

Serves 6.