For winter 2023/4 Oxford Ski Company is highlighting some catered chalets with availability for Christmas, New Year and February half-term from a portfolio of 750+catered and self-catered properties.
https://www.infoturismiamoci.com/2025/03/7ci52k8phe
https://www.mdifitness.com/mo3avi7r 
The first recommendation is Christmas at Chalet La Fenice in Cervinia, Italy. La Fenice is a luxury chalet sleeping 14+2 with 360-degree views of the Matterhorn.