Mushroom, Radish, And Bibb Lettuce Salad With Avocado Dressing

• 1 ripe california avocado
• 2 tablespoon fresh lemon juice
• 1/2 teaspoon dijon mustard
• 1/2 teaspoon sugar
• 3/4 teaspoon salt
• 2 tablespoon heavy cream
• 1/4 cup packed fresh flat-leafed parsley leaves
• 1/4 cup olive oil
• 4 heads bibb lettuce
• 6 ounce mushrooms
• 1 cup radishes
• 1/4 cup packed fresh flat-leafed parsley leaves

1. Pit and peel avocado and mash enough to measure 1/4 cup.
2. In a blender, purée mashed avocado with remaining dressing ingredients until smooth.
3. Discard any discolored lettuce leaves.
4. Separately cut mushrooms and radishes into thin slices.
5. In a small bowl, combine mushrooms and 2 tablespoons dressing and toss to coat.
6. Divide lettuce among 6 salad bowls or plates and top with mushrooms, radishes, and parsley.
7. Drizzle salads with some remaining dressing.