There's a few ways of preparing it, the most common is to cover it with highly distilled sorghum wine （高粱） then just set it on fire to let the alcohol cook the outside to give it a nice fragrance. It can be a difficult technique.

Many households these days just use a blowtorch or a toaster often

The idea is to give it a nice firm texture on the outside to make it hard enough to slice thin pieces, and leave it soft on the inside so the roe still retains the freshness to stick to ones teeth.

The radish and garlic sprouts can also be substituted with sliced apples or pears. There's also dishes that incorporate cooked-through roe in things like fried rice or used as fillings for other dishes.