Start with hearty herbs, like sage, thyme, or rosemary and place whole leaves and sprigs into an ice cube tray. Fill the tray with olive oil and freeze until solid, and voila, you’ve got herb and olive oil ice cubes. Olive oil preserves the herbs, and is a bonus flavor when it comes time to cook. Simply thaw the herbs out, and you’ll have fresh herbal flavor at your fingertips anytime.