Herring and Apple Salad

2 cups finely diced Granny Smith apple (about 1 medium)
1/2 cup chopped Rio or other sweet onion
1/4 cup chopped green onions
1 teaspoon chopped fresh dill
1/2 teaspoon sugar
Dash of freshly ground black pepper
2 hard-cooked large eggs, finely chopped
1 (12-ounce) jar kippered herring in wine sauce, drained and cut into 1/4-inch pieces
1 cup thinly sliced cucumber

Combine first 8 ingredients in a bowl. Cover and chill 4 hours. Serve salad over cucumber slices. Makes 8 servings