Potato and Beet Boulangere is a beautiful side dish perfect for holidays or entertaining. Thinly sliced beets are layered with thinly sliced potatoes and baked with butter, stock and herbs for a colourful and flavourful side dish.

I have been wanting to do a Potatoes Boulangere post on the blog for a while, and since we had some beets hanging around I thought this would be a great way to use them up - turns out it was AMAZING. The beets give a beautiful colour to the dish, and their earthy flavour adds another dimension to the flavour profile.
What is Potatoes Boulangere?
Potatoes Boulangere (Pommes Boulangere) is a French preparation of potatoes that involves thinly slicing the potatoes and baking them with onion, butter, herbs and stock. I like to think of it as a lightened up version of scalloped potatoes that most people are familiar with.
How to make Potato and Beet Boulangere:
This dish is easiest made with the aid of a mandolin. Using a mandolin ensures that you will have thin slices that are uniform in thickness so that the potatoes will cook evenly.
I like to prep my vegetables first so they are all ready to go before I start layering into the skillet.
Start by coating the bottom of your skillet with a thin layer of butter to ensure that the dish doesn't stick to the bottom. If you don't have a cast iron skillet, you can use any small baking dish for this. I like to use my cast iron skillet wherever possible so that is what I used.
To keep the layers of colour in this dish, you need to place your beets on the bottom. If you put the potatoes on the bottom and the beets on the top, when the beets cook their red liquid will colour the potatoes pink - then you won't have those beautiful layers of red and white that makes this dish so pretty.
Start by placing about half on the sliced beets in the bottom of the skillet. They should be overlapping to form a layer where you can't see through to the bottom of the pan. Top with a few slices of onion, sprinkle with a bit of rosemary and thyme and then add a few scattered dollops of butter over the beets.
Add another layer of beets and onions and herbs and butter, then begin the process again with the potatoes.
Finish off with a layer of just potatoes, then pour the stock evenly over the dish and drizzle a small amount of olive oil over the top to help crisp up the top layer.
Start baking the dish for 25 minutes at 4oo℉ degrees, then reduce the heat to 350℉ and bake for a further 30 minutes.
When you remove the dish from the oven allow it to cook and settle for about 10 minutes before serving.
DIETARY CONSIDERATIONS
This recipe for Potato and Beet Boulangere is suitable for the following diets:
- vegetarian
- this could be easily made vegan by replacing the butter with a vegan alternative
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MORE SIDE DISH RECIPES YOU'LL LOVE
If you like this recipe for Potato and Beet Boulangere, you might want to check out some of our other side dish recipes:
- Roasted Golden Beets with Wilted Greens
- Roasted Brussels Sprouts with Lemon Tahini Dressing
- Cauliflower and Cheese Pie
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Potato and Beet Boulangere
Ingredients:
- 1 pound beets - about 4 medium
- 1 pound white potatoes - about 4 medium
- 1 onion
- 3 Tablespoons butter
- 1 Tablespoons minced rosemary
- 1 Tablespoons thyme leaves
- ½ cup vegetable stock
Instructions
- Preheat your oven to 400℉
- Prep the beets and potatoes by slicing off the end and using a peeler to remove the remaining skin.
- Using a mandolin on the thinnest slice setting, slice the potatoes, beets and onion. Keep them separate for now.
- Use a small amount of butter to grease the bottom of a 10 inch cast iron skillet.
- Create a layer of beet slices on the bottom of the skillet using half of the beet slices, then scatter ⅓ of the onions on top. Sprinkle with rosemary and thyme and a few dollops of butter then season with salt and pepper.
- Repeat with the remaining beet slices.
- Create a layer of potato slices on top of the beet layer. Scatter the remaining onions, rosemary and thyme on top then spread the remaining butter across the layer.
- Top with a layer of the remaining potato.
- Pour the stock evenly over the dish, then drizzle the top with a bit of olive oil.
- Bake the skillet in the oven for 25 minutes, then reduce the heat to 350℉ and bake for another 30 mins.
- Remove skillet from the oven and allow it to cool about 10 minutes before serving.
Nutrition
* nutritional information is calculated by online tools and may not be 100% accurate.
Pam Greer says
I love the beets in this!! I haven't made a potato boulangere in ages. Time to make it again and use beets!
Courtney says
You should!! They really are so great in it.
Claudia Lamascolo says
this is a win win I love beets and its also so darn pretty to serve ... I would love this for lunch or even a dinner ... so elegant!
Courtney says
Thank you Claudia!
Ellen says
I am always looking for recipes that use beets! This looks amazing and the presentation is just lovely.
Courtney says
Thank you so much Ellen 🙂
Chris Collins says
I've actually never had boulangere but after reading this I'm definitely going to have to give it a go! Looks so yummy!!
Courtney says
You should, it’s delicious!
Annemarie says
This looks delicious! I bet the potatoes absorb the topping flavors so well.