Puget Sound Knappers

Ingredients

• 1 cup mayonnaise
• 2 tablespoons vinegar
• 1 1/2 teaspoons salt
• 1 teaspoon sugar
• 5 to 5 med. potatoes, peeled, cubed, cooked
• 1 cup sliced celery
• 1/2 cup chopped onion
• 3 eggs, hard-boiled
• 1 to 2 Tbs chopped green onions, optional garnish
• 1 tomato, cut in wedges, optional garnish