Grandma Olive Moss’s Cabbage Slaw

3 lbs shredded cabbage
¼ cup oil
1 cup finely chopped onion
¼ cup tarragon vinegar
¼ cup grated carrots
7/8 cup sugar
1 cup salad dressing
1 t. salt
Mix well and set in fridge to mix flavors.
Grandma Moss