Rachael Ray™ Stock-In-A-Box™ Low Sodium All-Natural Chicken Stock. "Whether you're making pan gravy or this roasted tomato and garlic soup recipe, be sure to use this low sodium stock-in-a-box for flavor that rocks!" -Rachael Ray. Tetra Brik®. Aseptic. Tetra Pak. Tetra Pak, protect what's good™. www.tetrapakusa.com. No MSG, gluten free. www.rachaelray.com.