Preheat the oven to 180'C / Fan 160'C / Gas Mark 4.
In a large bowl place the plum halves, sugar, cinnamon and amaretto. Mix well until the plums are evenly coated and then pour evenly into an ovenproof dish (approx 20cm diameter). Set to one side.
In a separate mixing bowl add the caster sugar, butter (in cubes) and gluten free self-raising flour. Use your fingertips to rub the mixture together until it starts to form a breadcrumb-like, lumpy consistency. Some bigger lumps are good as they add a lovely crunch to the crumble!
Pour the crumble mixture evenly over the plums, ensuring they are completely covered. Place the crumble in the oven for 35-40 minutes until golden on top. Remove from the oven and sit for 10-15 minutes before serving hot.
Video
Notes
Weighing Scales vs Cups: You can toggle this recipe card to convert the ingredients into cups. However, I always recommend using weighing scales – these are cheap to buy and much more accurate. And in gluten free baking, a tiny variation can make a huge difference!
Step-by-Step Photos: Check out the blog post above for step-by-step photos to guide you through how this plum crumble recipe should look at each stage.
Storing: Check out the Frequently Asked Questions above this recipe card and blog post above for more information on storing and freezing this crumble.
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