1 can green beans
1 can wax beans
1 can kidney beans
1/2 c. salad oil (corn oil)
3/4 c. sugar
1/2 c. vinegar
1 tsp. salt
1 onion, chopped fine

Drain beans, add salt and chopped onion. Mix salad oil, sugar and vinegar. Pour mixture over beans. Mix and cover. Let stand for 24 hours.