Fresh seasonal fruits

Try and use them when they are at their best. The exception is bananas, which make a great natural sweetener when overripe – the riper they are, the sweeter they become. Most berries can be frozen and used throughout the winter months, and are ideal for using in smoothies and baking. Included here as fruits are avocados and tomatoes (leave to ripen in your fruit bowl if they are not ripe when bought).