Impressive Holiday Potato Side Dish

This gratin is awesome with prime rib or beef tenderloin. See how we made this extraordinary crust; it's not as complicated as you might think.

• Recipe: Potato Gratin with Rosemary Crust

Layer two refrigerated piecrusts with finely chopped rosemary, Gruyère, and a sprinkling of freshly ground pepper.

Fit the crust into a springform pan, gently pressing and shaping dough over bottom and up sides.Tuck edges under, and chill.

Gradually add cream mixture, drizzling over sliced potato filling. Top with cheese; cover with foil, and slide it into oven.