Continue to cook, without stirring, until mixture is a deep amber color, brushing sides of saucepan with water as needed to wash down any crystals that may form. (seriouseats.com)
Stir the bottom and sides of the saucepan frequently to prevent burning. (joyofbaking.com)
Pour in oil to come 4» up sides of saucepan and heat over medium until thermometer registers 325 °. (bonappetit.com)