This recipe is great and the slaw keeps for ages, dressed, in the fridge. I add pumpkin and sunflower seeds to my already dressed slaw along with heaps of chopped parsley and corn kernels.
1 1/4 cups white vinegar
1/2 cup white sugar
1 1/4 t mustard seeds
1/2 t turmeric
1 t celery seeds
1 t salt
When just boiled and sugar dissolved, remove from heat and cool. Then add 1 cup vegetable oil.
This will dress a large amount of slaw and any leftover will keep in the fridge for a couple of weeks.