My very quick and lazy microwave Apple Crumble.

melt 1/2 a block of butter in the M/W (45 secs should do it)
stir it.
Add 1/3 cup brown sugar and a dash of cinnamon.
stir it.
Add 3 Tbsp dessimated Coconut.
stir it.
Add 1/2 cup flour.
stir it.
Add 1/2 cup rolled oates (or 3/4 cup or cornflakes)
Stir.

Grab a pyrex dish and empty a can of stewed apples in it. (I get the ones with cinnamon in them...)
get as many of the air bubbles out as you can by smooshing it with a fork.
Dump the crumble mix on top, patting down with a fork.

Nuke it for 6 mins on High.
Leave it to stand uncovered (not in M/W) for another 2-3 mins.

Serve!