Cooking fire by an igloo on a winter glacier?

We did not carry gas stoves on our February 1985 ski expedition, and packed firewood to above-timberline camps instead. But cooking on a wood fire wasn't really a trivial undertaking on this windswept, snowbound glacier. Here you can see a boiling cooking pot suspended on a wire from a contraption made of skis and poles. The fire itself is in a hole cut by a snow-saw in the hard windslab. The side wall of our twin-igloos palace is visible on the right, too.

Mechta Glacier, North Chuyskie Belki Range, Altay