Bananas sometimes go overripe and soft all of a sudden, but even if you prefer them firm, you needn’t throw them away. At this stage, they are sweeter than ever, making them a great ingredient for a range of dishes. Added to biscuits and waffles, soft bananas make them as juicy as banana bread. They also add a sweet flavour and provide vitamins when added to homemade muesli bars or if you make granola in the oven. Puree bananas with a little oil, then mix them with crunchy oats and nuts and bake it all in the oven until it’s nice and crispy. You can also use a ripe banana to replace two eggs i…