Duchess Potato Casserole Recipe

If you’ve never had the pleasure of trying Duchess Potatoes, let us introduce you to this French-inspired classic. Traditionally, duchess potatoes are piped into elegant swirls and baked until golden. This casserole simplifies that same creamy, buttery concept into an easy, no-fuss dish that’s just as impressive without the extra effort.

Here, fluffy mashed Yukon gold potatoes are elevated with garlicky Boursin cheese and fresh chives, creating an indulgent flavor that nearly resembles sour cream and onion. Egg yolks add richness and help the casserole puff up slightly in the oven—almost like a savory soufflé—while the fork-scalloped top crisps up beautifully in the oven.

Think of it as all the flavor of a loaded baked potato with none of the hassle. It’s the ultimate crowd-pleasing side dish that works just as well for a weeknight dinner as it does for extra-special occasions.