I found this recipe in my old Betty Crocker cookbook:

Ruby French Dressing

1 cup salad oil
2/3 cup catsup
1/2 cup vinegar
1/2 cup sugar
2 Tablespoons minced onions
1 Tablespoon lemon juice
1 teaspoon salt
1 teaspoon pepper
1 teaspoon dry mustard
1 teaspoon paprika

Shake all ingredients well in tightly covered jar. Refrigerate at least
3 hours to blend flavours. Makes 2 2/3 cups.

Denise