Grandma's Dressing (Catalina Style)

1 cup vegetable oil
3/4 cup white wine vinegar
1 cup white sugar
1/2 cup ketchup
1/2 teaspoon salt
2 teaspoons Worcestershire sauce
1 onion, chopped

Directions
1. Prepare dressing in a large jar with a tight fitting lid. Add the oil, vinegar, sugar, ketchup, salt, Worcestershire sauce and onion. Shake until the sugar is dissolved. Refrigerate and shake well before using.

Courtesy allrecipes