Celebrity chefs like Sunny Anderson, Duff Goldman, Bobby Flay, and Trisha Yearwood all have their own takes on a classic chocolate milkshake. I tested all four of their recipes to find the best one.

Milkshakes are one of the most iconic American desserts. They’re refreshingly cool, slurp-ably sweet and come in pretty much any flavor you can imagine. But you don’t need to belly up to a vinyl booth ...