Crumble too soft - how do I make it crisp and golden?

[franch]

I made a couple of extra dishes of crumble and they've gone in the freezer. The one I cooked this evening never browned, and the topping stayed soft.

When I cook the 2 frozen ones, is there anything I can do to save them? Would dotting with extra butter help?

It's a savoury crumble so I guess the lack of sugar doesn't help but I know a crispy veg crumble must be possible!

A grating of cheese perhaps... ?

[fivegomadindorset]

Oats.

[fivegomadindorset]

Or if savoury breadcrumbs.

[thisisyesterday]

hmmm... too much butter? not cooked long enough/high enough?

my savoury crumble always turns out crisp and golden and i don't add cheese or anything to it...

[icd]

Chuck it under the grill for the last 5 minutes?