Pommes boulangères is a classic French potato dish made by layering sliced potatoes with onions, seasoning, herbs, and stock, then baking everything until the potatoes turn tender and the broth reduces into the dish. It is different from a rich gratin because there is no cream or cheese, just potatoes, onions, butter, and broth. It is the kind of side dish that feels at home next to a roast on a cold evening, but it also works year-round when you want something more refined than plain roasted potatoes.

This version is based on my YouTube video, with a few adjustments since publication to make the written recipe more dependable. In the video, the spirit of the dish is very traditional: onions cooked gently in butter without color, potatoes layered in a gratin dish, then moistened with stock and baked until the liquid reduces. For the website version, I tightened the ratios and added a more precise baking method so the potatoes cook evenly from edge to center.

What I love about pommes boulangères is the balance. You still get the comfort of baked potatoes, but the texture is more delicate than a heavy gratin. The onions melt into the layers, the herbs perfume the stock, and the top gets lightly golden without needing cheese. If you enjoy the deeper richness of a traditional gratin dauphinois, this is a slightly lighter and more broth-driven alternative. If you prefer crisp edges and bold browning, my air fryer roasted potatoes go in another direction entirely.

For the best result, use yellow-fleshed potatoes such as Yukon Gold. They hold together well enough for nice layers, but they still become tender and silky once baked in stock. Russets can work, but they break down more easily and give a softer, less defined finish. The onions matter too. Yellow onions are the right choice here because they soften into sweetness without turning the dish sugary.

Another important detail is how the onions are cooked. They should be softened in butter without browning. That small step gives the whole dish its gentle, savory base. If you let the onions color too much, the finished potatoes taste more roasted than classical. The goal is subtlety. The stock should support the potatoes, not drown them. That is why I prefer a measured quantity and a controlled bake rather than guessing by eye.

This is also one of those potato sides that pairs beautifully with other classics. It belongs naturally beside a blanquette, but it is also excellent with a simple roast, a pan sauce, or even a spoonful of homemade garlic butter melted over the top right before serving. If you want another elegant French-style potato side for comparison, my Parisian potatoes are more buttery and sautéed, while pommes boulangères is softer, juicier, and more aromatic.

Ingredients

3 lb Yukon Gold potatoes
3 large yellow onions
4 tbsp unsalted butter
3 1/2 cups chicken stock
2 tsp kosher salt, divided
1 tsp black pepper, divided
4 sprigs thyme
2 bay leaves

How to Make Pommes Boulangères

Start by heating the oven to 375°F. Butter a large baking dish, ideally around 9 x 13 inches. Peel the potatoes and slice them thinly, about 1/8 inch thick. You want the slices even so they bake at the same pace. Thin, regular slices are one of the biggest differences between a polished result and a patchy one.

Peel and thinly slice the onions. Melt 2 tablespoons of the butter in a large pan over medium heat, then add the onions with a pinch of salt and pepper. Cook them gently for about 10 to 12 minutes, stirring from time to time, until they are soft and lightly translucent. Do not brown them. They should collapse and mellow, not caramelize.

Layer one third of the potatoes in the baking dish. Add one third of the onions, a light sprinkle of salt and pepper, and a few thyme leaves. Repeat with the second layer, then finish with the remaining potatoes and onions on top. Tuck the bay leaves into the side of the dish and scatter the rest of the thyme over the surface.

Warm the chicken stock slightly, then pour it carefully around the potatoes. It should come close to the top layers without completely flooding the dish. Dot the remaining 2 tablespoons of butter across the top.

For a more reliable result than the video version, cover the dish loosely with foil for the first 35 minutes. This helps the potatoes soften before the top dries out. Then remove the foil and continue baking for 35 to 45 minutes, until the potatoes are completely tender when pierced with a knife and most of the stock has been absorbed or reduced. The top should be lightly golden, not hard or dry.

Let the dish rest for 10 minutes before serving. That short rest helps the layers settle and gives the remaining juices time to redistribute. Spoon it from the side so you keep the structure of the layers intact.

Why This Version Works

Pommes boulangères often gets confused with gratin dauphinois, but they are not the same dish. Dauphinois relies on cream and often feels richer and more decadent. Pommes boulangères is built on stock, onions, and herbs, so it has a cleaner, more savory finish. It still belongs firmly in comfort food territory, but it feels a bit lighter on the plate.

That makes it especially useful when the main course is already rich. A buttery roast chicken, braised veal, pork roast, or even something like traditional blanquette de veau benefits from a side that brings flavor without extra heaviness. If you are after a creamier potato side, homemade mashed potatoes may be a better fit. If you want more structure and a more layered baked texture, this is the dish to make.

Substitutions

You can use shallots in place of part of the onions if you want a slightly finer flavor, but I would still keep some yellow onion for body.

Vegetable stock can replace chicken stock if needed. The flavor will be less round, but the dish will still work.

Fresh thyme is ideal, but dried thyme can work in a pinch. Use it lightly because dried herbs can dominate.

If you want a more rustic version, leave a little of the potato skin on after scrubbing well.

A small amount of garlic can be added to the onions near the end of cooking, but keep it restrained. This dish should taste of potatoes, onions, stock, and herbs first.

FAQ

Can I make pommes boulangères ahead of time?

Yes. You can bake it fully, cool it, then reheat it covered at 325°F until hot. Remove the cover for the last few minutes to freshen the top.

Why are my potatoes still firm?

Usually the slices were too thick, the dish was too deep, or the stock level was too low. Thin slices and a wide baking dish help a lot.

Can I bake it uncovered the whole time?

You can, and that is closer to the spirit of the video, but it is less forgiving. Covering it at the start gives more consistent results for a written recipe.

Can I freeze it?

It is possible, but the texture is best fresh or reheated from the fridge. Frozen potatoes tend to lose some of their clean layered texture.

What should the final texture be like?

Tender all the way through, lightly golden on top, moist underneath, and not swimming in liquid.

What to Serve With Pommes Boulangères

If you like elegant potato sides, you might also enjoy cauliflower potato gratin, stuffed potatoes with ham, or a simple potato and pepper omelette for another classic way to use potatoes.

For a more casual side dish spread, authentic Belgian fries and air fryer roasted potatoes are great contrasts in texture.

If you want to build flavor from the ground up, keeping chicken stock concentrate on hand makes dishes like this even better.