This oven baked 4-ingredient creamy leek potato bake is the kind of side dish that quietly steals the show at every spring gathering. I learned it from my grandmother on the farm, where leeks and potatoes were among the first things to come up in the cool Midwestern soil. It’s simple country cooking: thinly sliced potatoes and sweet leeks tucked into a baking dish, covered in rich cream, and baked until everything is tender, bubbling, and lightly browned around the edges. With just four ingredients and a little patience, you get a comforting, old-fashioned side that feels right at home next to ham, roast chicken, or a simple green salad.
Serve this creamy leek potato bake piping hot, straight from the oven while the edges are still bubbling and golden. It’s wonderful beside baked ham, roast chicken, or pork chops, and it fits right in on an Easter or spring potluck table. Add a crisp green salad or some buttered green beans to balance the richness, and offer a basket of warm dinner rolls to help scoop up every last bit of the creamy sauce. Leftovers reheat nicely and make a cozy lunch alongside a bowl of simple tomato or vegetable soup.
Creamy Leek Potato BakeServings: 6
Ingredients
2 pounds russet or Yukon Gold potatoes, peeled and thinly sliced
2 large leeks, white and light green parts only, cleaned and thinly sliced
2 cups heavy cream
2 teaspoons kosher salt, plus more to taste
Directions
Preheat your oven to 375°F (190°C). Lightly butter or oil a medium ceramic baking dish (about 2-quart capacity) so the potatoes don’t stick.
Prepare the leeks by trimming off the dark green tops and root ends. Slice the white and light green parts in half lengthwise, then into thin half-moons. Rinse the slices well in a bowl of cold water, swishing to remove any grit, and drain thoroughly.
Peel the potatoes and slice them into thin rounds, about 1/8-inch thick. Try to keep the slices even so they cook at the same rate. If they start to brown while you work, you can keep them in a bowl of cold water, then pat dry before layering.
Layer about one-third of the potato slices evenly over the bottom of the prepared baking dish, slightly overlapping them like shingles. Sprinkle lightly with some of the salt.
Scatter half of the sliced leeks evenly over the potatoes. Repeat with another one-third of the potatoes (again slightly overlapping), a sprinkle of salt, and the remaining leeks. Finish with the last layer of potatoes on top and the remaining salt.
Slowly pour the heavy cream over the layered potatoes and leeks, making sure it seeps down between the slices. Gently press down on the top with your hands or the back of a spoon to help everything settle into the cream. The cream should come almost to the top layer but not completely cover it.
Cover the baking dish tightly with foil and place it on a rimmed baking sheet to catch any drips. Bake, covered, for 45 minutes, until the potatoes are starting to turn tender when pierced with the tip of a knife.
Remove the foil and continue baking for another 25–35 minutes, or until the cream is thickened and bubbling, the top is lightly golden in spots, and the potatoes and leeks are very tender all the way through.
Let the dish rest for at least 10–15 minutes before serving. This allows the creamy sauce to settle and thicken a bit more, making it easier to scoop neat portions. Taste and sprinkle with a little extra salt at the table if needed.
Variations & Tips
If you like a hint of pepper, you can add freshly ground black pepper or a pinch of white pepper along with the salt, though my grandmother kept it to just salt and cream to let the leeks shine. For a slightly lighter version, you can use half-and-half instead of heavy cream, but the sauce will be a bit thinner and less rich. Yukon Gold potatoes hold their shape nicely and give a buttery flavor, while russets turn softer and more velvety—both work well, so use what you have. If your leeks are very large, use 1 1/2 instead of 2 so they don’t overpower the potatoes. To make this ahead for a gathering, bake it covered until just tender, cool, then refrigerate; reheat uncovered at 350°F until hot and bubbling again. If you’d like a deeper golden top, move the dish under the broiler for 2–3 minutes at the end of baking, watching closely so it doesn’t scorch.
