Now, adjust. Add salt, pepper, and fresh herbs to taste. Too thick, add broth. Too thin, whisk in a slurry of cornstarch and water, a bit at a time. Lumpy? Strain it. If a secret ingredient gives you a thrill, a little soy sauce, miso, nutritional yeast, or even MSG will add a savoury, umami boost. Just be careful; it’s not secret if everyone can taste it.