Coleslaw mix is a combination of shredded green cabbage and carrots. If you can't find it in your grocery store, you can shred it yourself. For this recipe, use a combination of 6 cups cups shredded cabbage and 3/4 cup shredded carrots.
Caraway seeds will give the cabbage and onions the quintessential taste of Germany. If you're not familiar with caraway, it's the signature flavor of rye bread.
Barrel House Cooker manufacturer's instructions for lighting the grill.