Sweet-Sour Green Beans

From "Cooking Without a Grain of Salt."

1 pkg. frozen green beans or 1 lb. fresh beans

2 tablespoons unsalted butter or margarine

2 tablespoons finely chopped onion

1 tablespoon vinegar

1/2 teaspoon sugar

1/4 teaspoon curry powder

Pepper to taste

Cook frozen beans according to directions on package but without salt, or cook fresh beans until tender. Melt butter or margarine, add onion, and cook until tender but not brown. Stir in vinegar, sugar, curry and pepper. Pour over hot cooked and drained beans. Makes 4 servings.