Boil rutabaga in salted water 20 minutes until fork tender; drain and mash.
Stir in cream, syrup, salt, nutmeg.
Pack into a buttered 8x8 dish; top with breadcrumbs; dot with butter.
Bake 350°F for 45 minutes until deep golden.
Notes
During WWII rations, Finns cleverly swapped out scarce potatoes for humble rutabagas (lanttu), turning this earthy root into a sweet-spiced hero that saved the holiday spirit.