I thought I was posting a video to show off the advantages of doing mashed potatoes ahead of time, but then I realized all that was nothing more than a diversion to distract you from the fact that I’m really trying to trick you into using an alternative to the standard holiday potato side dish.
These mascarpone mashed potatoes are certainly close enough to the classic recipe to keep any purists in the family happy, but the addition of the mild, creamy Italian cheese, a touch of egg yolk, and copious amounts of butter, elevate this to “special occasion” status.
Besides being a delicious change of pace, the advantages of the casserole delivery system are obvious. You don’t have to time your potato mashing so precisely, and this keeps warm in the casserole dish a long time, so it’s really nice for larger groups.
As always, feel free to alter this to your tastes. I do add a substantial amount of butter, but a few times a year I feel like I’ve earned that right, and do so unapologetically. I hope you do the same. Enjoy!
4 1/4 pounds russet potatoes
salt and pepper to taste
cayenne to taste
1 cup butter (2 sticks)
1/2 cup mascarpone cheese
3/4 cup milk
1 egg yolk