To make apple sauce (apple purée) simply peel and core the apples and then cut into small pieces. Place in a saucepan and for every apple add roughly 2 tablespoons of water. Turn the heat on and bring to the boil, then turn the heat down really low, put a lid on your pot and allow to simmer for about 10 minutes. Transfer your apples to your blender (or use a soup blender in the pot) and blend until it becomes a smooth purée.