Ingredients 2 cups of uncooked shell pasta 1 cup mayonnaise 1/2 cup sour cream 1/8 cup cider vinegar 1/8 cup sugar 1 teaspoon pepper 1 teaspoon onion powder 1/2 teaspoon salt 1 teaspoon garlic 1 tablespoon Dijon mustard 1/2 bell pepper 1/2 red onion 1/2 …