French Lyonnaise Potatoes

Lyonnaise Potatoes is a popular French recipe that is quite easy to prepare. The potatoes are roasted in butter then baked with caramelized onions and finished with fresh herbs. This vegetarian side pairs perfectly with roasted meats and white fish, but also with eggs.

Lyonnaise potatoes are a traditional peasant recipe, probably very ancient, but the first written recipe felt to this day is dated 1806, into the cookbook Le Cuisinier Impérial by Alexandre Viard. In this first recipe, it is interesting to note the addition of flour into the caramelized onions along with a bit of vinegar, habit by the time fallen out of fashion.

Basically, there are 2 ways of cooking Lyonnaise potatoes.

The first one provides for the exclusive use of the pan: the potatoes are pan roasted separately from the onions, using the same skillet. This method fits well preparing just a few potato slices, considering the difficulty to make well brown all their sides.

The second method calls for the use of a baking tray and it is explained in the following paragraphs.

To prepare Lyonnaise potatoes to perfection, you want to wash a significant amount of starch.

First of all, brush the potatoes under running water, then cut them into rings. Now, rinse the potatoes rings to eliminate as much as possible the starch. Finally, pour the potatoes into a bowl and submerge with medium hot water for at least 1 hour.

 

 

 

French Lyonnaise Potatoes
 
Prep Time
Total Time
 
Author:
Recipe Type: Side
Serves: 4 servings
Ingredients
  • 2 Lb (900 g) red potatoes
  • 2 (1.5 Lb/700 g) big yellow onions
  • 1 tsp yellow mustard seeds (optional)
  • 1 tbsp fresh parsley, minced
  • 8 tbsp unsalted butter
  • 1 dash black pepper
  • to taste table salt
Instructions
  1. To prepare Lyonnaise potatoes to perfection, you want to wash a significant amount of starch.
  2. First of all, brush the potatoes under running water, then cut them into rings. Now, rinse the potatoes rings to eliminate as much as possible the starch. Finally, pour the potatoes into a bowl and submerge with medium hot water for at least 1 hour.
CARAMELIZED ONIONS
  1. Peel and cut the onions into halves, then reduce into slices. Now, pour 2 tbsp of butter, 2 pinches of salt, and optionally the yellow mustard seeds in a skillet, better if cast iron. Place the pan over medium/low heat, then add the onions, and cook until golden brown and nicely caramelized, occasionally stirring as needed.
ROASTING POTATOES
  1. While the onions are caramelizing, preheat the oven to 450° F (230° C) and melt 6 tbsp of butter into a little pot over medium heat.
  2. Now, rinse the potatoes one more time and dry them with a clean kitchen towel. After that, season the potatoes with the liquid butter, and place them on a baking tray lined with parchment paper. Finally, season with a generous sprinkle of salt, and bake until the potatoes become golden brown, flipping and salting them again halfway. To obtain a nice crust and speed up the process, operate the broiler: in case, pay attention to the parchment paper to prevent any fire!
FINISH AND SERVE LYONNAISE POTATOES
  1. Once the potatoes are ready, pour them into the pan and toss along with the caramelized onions, then bake 10 minutes more at 355° F (180° C). Eventually, garnish with minced parsley, and a sprinkle of black pepper, then serve immediately!

 

Filippo Trapella

Born and raised in Bologna, Italy (hometown of lasagna and tortellini!), I grew up under the table of my grandmother helping her making fresh pasta for our Sunday feasts with the family. My passion for food stems from my curiosity, which has led me to travel around almost all continents (I still miss Oceania, but I hope to fill that gap soon!). During my trips I discovered the power of food. In my blog philosokitchen.com I write my recipes and my experiences around the world.

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