Homemade coleslaw is the quintessential summer side to serve at a party or barbecue. Whether you like your slaw creamy or vinegary, more often than not a good slaw comes down to the cabbage slice.

I came late to the spiralizer party. I’d never heard of the gadget that turns vegetables into noodle-like strands until about a year ago, when I started seeing dishes with names such as “Zinguine™” on ...