French-trained chef Julia Child's favorite soup, which is served chilled, may sound sophisticated, but at its core, it's actually stunningly simple.

However, it was reportedly Child’s favorite soup — and it turns out there’s a lot you can learn about cooking by studying what makes this particular recipe work.

One of the first recipes I made was French onion soup, and it's still one of my favorite winter dinners. Here's why you should try Julia Child's recipe for French onion soup for dinner tonight.