Hachis Parmentier Rapide
(ah-shee par-men-tyay rah-peed)
La Cuisine de Grand-Mère: The Sunday Pots
A proper French Sunday involves a slow-simmered pot-au-feu, whose leftovers are lovingly resurrected on Monday beneath a crust of mashed potatoes. But you have a life, a job, and a Tuesday night in Ohio. This is how the modern French working mother fakes it. By cutting lean ground beef with rich pork sausage, you simulate the deep, fatty resonance of a weekend braise in fifteen minutes. Just promise me you won't put the potatoes in a blender—respect the tuber, use a manual masher, and you'll have something beautiful, deeply comforting, and entirely real.
Before you start
Preheat your oven to 400°F (200°C).
Lightly butter a 9x13-inch gratin dish or a similarly sized oval baking dish.
Ingredients
- Yukon Gold potatoes2 1/2 lb
- kosher salt1 tbsp
- unsalted butter6 tbsp
- whole milk1/2 cup
- egg yolk1 large
- nutmeg1/4 tsp
- unsalted butter1 tbsp
- yellow onion1 large
- carrot1 med
- garlic2 clove
- 80/20 ground beef1 lb
- mild pork sausage meat1/2 lb
- tomato paste1 tbsp
- all-purpose flour1 tbsp
- beef broth3/4 cup
- dried thyme1 tsp
- Worcestershire sauce1 tbsp
- fresh flat-leaf parsley1/4 cup
- Gruyère cheese1 cup
- plain breadcrumbs2 tbsp
- unsalted butter1 tbsp
Method
- 01
Boil the potatoes in salted water until knife-tender.
Put the chunked Yukon Golds in a large pot, cover them by an inch with cold water, add the kosher salt, and simmer for about 20 minutes until they yield completely.
- 02
Sweat the aromatics to build your base.
While the potatoes boil, heat a tablespoon of butter in a large skillet over medium. Cook the onion and carrot until soft, about 5 to 7 minutes, then stir in the garlic until fragrant.
- 03
Brown the beef and pork sausage together.
Crank the heat to medium-high. The pork fat is the secret here, bridging the gap between a quick sauté and a slow braise. Break the meats apart vigorously with a wooden spoon and cook until no pink remains.
- 04
Build the savory glaze.
Stir in the tomato paste, thyme, and flour, cooking for one minute to kill the raw flour taste. Pour in the beef broth and Worcestershire, letting it simmer and reduce for a few minutes until it tightly coats the meat in a rich, glossy gravy. Take it off the heat, stir in the parsley, and spread the mixture evenly into your prepared gratin dish.
- 05
Mash the potatoes by hand.
Drain the potatoes well and crush them back into the warm pot using a manual masher or ricer. Fold in the softened butter, then the warm milk, grated nutmeg, salt, and pepper. Vigorously beat in the egg yolk last to give the purée real backbone and richness.
- 06
Assemble the parmentier and score the top.
Dollop the mash over the meat and spread it flat with a spatula, sealing the edges. Drag a fork lightly across the surface to create textured ridges—these will catch the heat and turn beautifully crisp.
- 07
Top with cheese and breadcrumbs, then bake.
Scatter the grated Gruyère, breadcrumbs, and tiny cubes of cold butter over the potatoes. Bake for 20 to 25 minutes until the edges are bubbling and the potato peaks are deeply golden. Let it rest for 10 minutes before serving so the juices can settle.
Notes
The anti-glue mandate.
An electric mixer shears the starch molecules in hot potatoes, turning them into spackle. Use a food mill, ricer, or a good old-fashioned hand masher to keep the purée fluffy and light.
Serve with sharp acid.
This is a heavy, lipid-rich dish. Serve it exactly as they do in France: as a standalone main course, paired with a simple green salad dressed heavily in a sharp, mustard-forward vinaigrette to cleanse the palate between bites.
From Cook French in America.