Mike's Crunchy Cole Slaw
1 head green cabbage, finely chopped (about 5 cups)
1/4 head red cabbage, finely chopped (about 1 cup)
1 carrot, shredded
Dressing:
2 cups apple cider vinegar
2 cups sugar
1-1/2 tablespoons canola or other mild vegetable oil
1/2 cup chopped onion
1/4 cup chopped green...