Salads - A Favorite Potato Salad

This salad is really excellent...
2/3 cup olive oil
6 T cider vinegar
2 T brown mustard
2 garlic cloves
4 t anchovy paste
3/4 pound green beans
2 pounds red potatoes
1 cup thin-sliced scallions
8 strips of bacon, cooked
1/2 cup grated Parmesan

Blend first 5 ingredients in blender till smooth. Season with salt and pepper. Cook beans, cool in ice water. Drain, cut in 2-3" lengths. Cook potatoes about 20 mins, drain, cool; peel and cut up. Place potatoes, beans, scallions, and 1/2 of the bacon and 1/4 of the cheese in a large bowl. Toss gently. Pour 1/2 cup of dressing over, toss gently. Season with salt and pepper. (Can be made 6 hours ahead, cover and refrig.) Sprinkle with remaining bacon and cheese and serve. Serves at least 6-8.