For the crumble topping, stir the light brown soft sugar and plain flour together in a mixing bowl, or add them to your food processor
Add the butter to the bowl in chunks or cubes, then using your fingers, rub it into the flour and sugar until it resembles breadcrumbs. You can also do this in a food processor if you prefer, or with a fork or pastry blender. Stir in the oats
Peel, core and chop the apples and pears into small chunks, place in a large mixing bowl. I like to use an apple cutter to do this quickly and avoid the apples browning. Or you can put a squeeze of lemon juice into a bowl of water and add the apple and pear chunks to it as you cut them. Drain them off when you're done
Add the light brown soft sugar, cornflour, cinnamon, mixed spice and nutmeg to the apples and pears, and stir them all together
Put the apple and pear mix into a baking dish (the one I used was 32.5 x 19 x 8 cm)
Spread the crumble topping over the fruit and bake it for 45 minutes or until golden and bubbling
Serve warm, or leave to cool fully, cover the dish with cling film and store in the fridge for up to 3 days
Video
Notes
You can use either unsalted butter or a baking spread for the crumble topping.
Mixed spice is a British spice blend containing cinnamon, coriander seed, nutmeg, clove, pimento and ginger. If you can't get hold of it, use a mix of these spices or use a pumpkin spice mix instead.
I really recommend using light brown soft sugar if you can, as it gives the crumble a lovely caramel flavour. But if you can't get hold of it, you can use golden caster sugar or regular caster sugar (superfine sugar) instead.
I added some oats into the crumble mix for texture and goodness, this is optional so leave them out if you prefer.
Although I provide cup measurements, I highly recommend weighing your ingredients out using digital kitchen scales. It is the most accurate way to measure ingredients and will ensure the best results. Digital scales are very low cost and can be purchased for around £12 ($16.50).
For teaspoon (tsp) and tablespoon (tbsp) measurements, please use measuring spoons and not the type of spoons you eat with. Again this will ensure accuracy and provide the best results.