For best results, soak the red onion in a mixture of 1 part water to 1 part vinegar for 10-15 minutes before use to tame the strong flavor and reduce odor. In addition, tough kale leaves can be tenderized by rubbing them with some olive oil for a few minutes.
Keyword barbecue, BBQ, cabbage, coleslaw, picnic, potluck, side dish, summer