We can always add texture in several ways for our crumbles. Sprinkle the crumble topping with 30 g or 1/4 cup of coarsely chopped hazelnuts or walnuts, or flaked almonds before baking. Or use a coarser sugar such as demerara instead of caster sugar, and replace 30 g of the flour with the same weight of toasted muesli or crushed amaretti biscuits. Add these at the same time as the sugar.
** Asian Recipes