This sugar free crumble has a deliciously crunchy topping, with naturally sweet fruit beneath. A no sugar crumble topping is super easy to make. It complements all types of fruit crumble, although I think sugar free apple and cinnamon crumble is simply the best.
Melt the butter in a pan over a low heat. Stir in the ground cinnamon and optional sweetener if using.
Add the oats to the melted butter and stir until mixed and clumps start to form.
Wash, prepare and cut your fruit into bite-sized pieces. Add to an oven proof baking dish.
Add the sugar free crumble topping, and spread over the fruit base.
Bake for 30 minutes in the preheated oven until golden and crunchy. Pierce the crumble with a sharp knife to ensure that the fruit is cooked through. If necessary, pop the crumble back in the oven for an extra 5-10 minutes.
Notes
You can replace up to half of the oats with flour if preferred for a less crunchy topping.
Depending on your taste and the fruit you are using, you may want to add some sweetener. You can use a liquid sweetener such as honey, maple syrup, date syrup or unsweetened apple sauce. Add a tablespoonful to the melted butter. Alternatively, use a powdered sweetener such as stevia or xylitol.
If you are making the crumble with soft fruit such as berries, peaches or plums, you'll find that quite a lot of juice runs out of the fruit as it cooks. It's nice to thicken the juices into a syrup. Either stir a tablespoon of cornflour or ground almonds into the fruit before adding the topping.
If you want to reduce the natural sugars in the recipe, use a lower sugar fruit such as berries.