hy·per·cook·ing (verb): An environmentally-conscious way of cooking that seeks to maximize the impact of the energy used during the cooking process.
One hypercooking technique involves saving energy by turning off the source of the heat before a dish is fully-cooked and relying upon the residual heat to cook the food until it is done.
An article in the Columbus Dispatch described how author Jackie Newgent recommends using hypercooking in her book Big Green Cookbook:
"Newgent also recommends turning off the oven before food is completely cooked. If the dish -- say, a casserole -- needs the crunchy topping produced by extended cooking, she suggests a few minutes under the broiler for the same effect.
The alternative is part of a technique she calls 'hypercooking' -- getting the most out of the energy used."