Why Rachael Ray Loves Vinyl Records and Murder

Celebrity chef and host of her eponymous show, returning Sept. 10, on her obsessions with hard rock, roller disco and ‘Columbo’

I was a big roller-skating disco girl when I was growing up. I still love roller skates—the old-timey ones, not the in-line skates. I’m 50 now, and our last big company party was at the roller rink.

My husband gave me a beautiful set of Paul Cox knives. They have black diamonds in the handles and they look like you’re gonna murder someone. They’re pretty cool (similar model shown).

We...