"crunch on" is correct in written English.
You can use it to refer to someone actively eating something that has a crunchy texture. For example, "She enjoyed crunching on the popcorn while watching the movie."
Banks and other lenders also started calling in loans or at least withholding new ones, inflicting a credit crunch on the broader economy.Is such a wrenching balance-sheet recession avoidable?
He is the crunch on the middle class".
The dough is mostly floppy, with a faint crunch on the bottom.
It's come to the crunch on prison costs and prison numbers.
Brazil's currency has plummeted, aggravating a credit crunch on international markets that is hurting Brazilian companies.
Without any sear, char or crunch on the outside, the calamari was just plain wormy.
Don't forget to crunch on the deep-fried and salted chilies for an additional smoky heat.
Add a credit crunch on top and the risks of a sharp slowdown, even a recession, are uncomfortably high.
Founder Kumari Middleton is currently working her way through The Crunch, on a scholarship provided by the Victorian government.
It has become a popular pastime of commentators to blame the credit crunch on the repeal of Glass-Steagall.
Peter Kenyon, the Chelsea chief executive, was at pains yesterday to play down the effect of the "credit crunch" on Abramovich's willingness to fund Chelsea.
