Core and peel apples, then chop into 1cm cubes, pour into mixing bowl and toss in lemon juice.
Combine 250g of caster sugar with the plain flour and the cubed butter then rub between your fingers until a “sandy” texture is achieved. This is the crumble mix.
Sprinkle the apples with the mixed spice and 100g of caster sugar, then pour in the maple syrup and mix well.
Place mixture in an oven -proof dish, then top with the crumble mix. Bake in hot oven (220 degrees) for approximately 40 minutes or until the top is crispy.