M&S Chicken Bone Broth Frozen Frozen for freshness, this chicken bone broth gives delicious umami notes to soups and sauces. Ready to use from frozen. Portioned into little rounds to use as much or as little as you like whenever you need it. Use... 4 rounds plus 300ml water to make a rich roasted gravy for two, 2 rounds plus 125ml wine for a rich finishing jus, the whole bag to make 2 litres of stock for broths, soups and casseroles. M&S brings you our frozen pantry with hints and tips by our chefs and suppliers to maximise our pantry staples in your kitchen. Go on be bold and experiment.