Ingredients for 12 portions: 1 pound (4 cups) uncooked elbow macaroni, cooked in well-salted water For the dressing: 1 cup mayonnaise, plus an extra spoon as needed 1/4 cup white vinegar 1 or 2 tbsp white sugar 2 tablespoons Dijon mustard 2 tsp kosher salt, plus more to taste 1/2 teaspoon ground black pepper 1/8 tsp cayenne 1/2 cup green onions, white and light parts 1 cup finely diced celery 3/4 cup diced red bell pepper 1/2 cup diced green pepper (I used poblano and jalapeno) 1/2 cup grated carrot Show Less >>