Plums on sale and bought too many back but were sour to consume much. With the leftover plums I baked them into crumbles.
Slice plums into thick pieces. Mix in elderberry syrup and honey to the plums o your preferred sweetness. Fill up the ramekins with plums to the realm as the plums will shrink when bake. Sprinkle oats over the top of the plums evenly. Bake till plums are bubbling and aromatic.