1) bleed your fish immediately.
2) Remove eggs from the fish while still on the river, try not to get water on them. If the fish is bled out, don't see why keeping them in the cool body cavity of the fish is going to hurt anything.
3) choose a commercial off the shelf cure that you want to try. My fave would be 3/4 Pro Cure and 1/4 ProGow.
4) butterfly the skeins lengthwise to expose the interior of each skein. Be careful not to damage the exterior membrane. I've done both rinsing and not rinsing the blood out of the filleted skeins with cold tap water and don't think it really makes a difference either way. If you quickly get cure on the eggs, the water won't do anything to the eggs in that short of time.
5) apply a light coating of cure to the eggs, less is more here. You can always apply more at the end of the curing process. You can’t take any off.
6) put the coated eggs into a gallon ziploc and apply another 1-3 TBSP of cure to the bag.Always wondered if the toxins from the pastic are leaching in to the eggs. For that reason, I use a gallon pickle jar. Figured curing in glass is the safest bet.
7) gently roll eggs to evenly distribute the cure.
8) I let my eggs sit at room temp in the garage this time of the year for up to a week. I roll the bags over once or twice a day so the juices work back and forth. If you're going to target salmon and are adding in scents to your eggs, I'd recommend you do it right as the eggs suck up the initial juices in the curing process. Within the first 24 hours.
9) eggs are done when most of the juice is gone and the eggs have good color. Some eggs cure faster than others.
5-7 days in the fridge for steelie eggs is about right. I've also caught fish on driveway eggs that literally were curing for months in the fridge. Stupid steelhats will kinda pick up any egg, really.
10) jar and freeze. Pint jars hold up well in the freezer. Quart jars will crack when frozen. Ask me how I know this.
This. I put a couple thoughts in red. Just thoughts and no one egg cure method is better than others.
Can't go wrong with what FishStickk posted.