Meat or vegetable stock is a great staple ingredient. Add it to stews, whip up a quick gravy or even put it with noodles for a quick meal. Most people are put off by making their own stock as they think it is too time-consuming and can only be kept for a day or two in the fridge. However, you can pour vegetable or meat-based stock into an ice cube tray and it will stay good to use for up to six months. Just pop it out of the tray and add to your pan for a quick, fuss-free sauce.