Core and slice the apples then place them into a large bowl. Top with 1/2 cup of sugar, 1 teaspoon of cinnamon and the lemon juice, and toss to combine. Transfer the apples to the bottom of you slow cooker.
In the same large bowl, combine the oats, quinoa flakes, coconut flour, remaining coconut sugar and cinnamon, and the salt. Whisk to combine.
Add the coconut oil into the bowl the stir together to form a sand texture - you still want there to be small chunks of coconut oil there. Sprinkle the topping on top of the apples.
Turn the slow cooker on high and cook for 2 hours with the cover on. After two hours, remove the cover and continue to cook for one hour.
Serve with a dollop of ice cream and a sprinkle more sugar.