Potato Latkes with Watercress, Smoked Salmon, and Avocado Salad

Ingredients

• 1 tablespoon all purpose flour
• 1 teaspoon baking powder
• 4 ounces thinly sliced smoked salmon
• 1 large avocado
• 2 large bunches watercress (about 8 cups)
• ¼ teaspoon dry mustard
• 2 tablespoons Sherry wine vinegar
• + 7 more ingredients
• • 6 tablespoons olive oil
  • Vegetable oil
  • 2 pounds russet potatoes
  • ¼ teaspoon freshly ground black pepper
  • 1 large egg
  • 2 cups onions
  • 1 ¼ teaspoons coarse kosher salt

Line colander with kitchen towel. Stir 1 1/2 cups onions, egg, salt, and pepper in large bowl. Place remaining 1/2 cup onions in processor; add potatoes. Blend until potatoes are very finely chopped and some of mixture is pureed; transfer to prepared colander. Wrap towel around potatoes, squeezin...

View full recipe at Epicurious