Ski touring into the Snow Peak Cabin in the winter/spring has become an annual tradition for me and my friends. The cabin is cozy and well stocked with cots, chairs, pots and pans, firewood, and solar lights! All you really need to pack in besides the basic necessities are your sleeping bag, ski apres, and a good water filter. There's also some good skiing near the cabin and at Sherman Pass proper near where you park, as well as plenty of conservative terrain options if the avalanche forecast dictates that for you.
Snow Peak Cabin never disappoints so if you want to get a reservation, make sure you get on it early. Reservations are first-come-first-served at least 6 months out. If you are curious about the current conditions up there, the Panhandle Backcountry website is a great resource for you, as it frequently has the most current trip reports and observations.