Make fancy-schmancy sous-vide on a budget with Anova’s Precision Cooker

LAS VEGAS—Aspiring gourmets may wish for the fancy equipment needed to perfect many dishes, but such gear can be expensive or difficult to use. Anova’s sous-vide Precision Cooker is neither of those things, however, and that’s why it’s such a hit: This $179 Bluetooth-controlled gadget is simple to operate and requires nothing more than a pot, a