Turn the oven on to 180 °C. Take the roast out of the fridge, season it with salt and pepper, then rub it with the dried thyme (1/2 tsp).
Brown the roast
Heat the olive oil (1 tbsp) in the skillet over high heat and brown the roast on all sides.
Into the oven
Put the skillet in the oven for about 40 min, until it hits 65 °C to 70 °C inside, flipping the roast halfway through. You're aiming for a center with no pink.
Cook the celery root
Peel the celery root (300 g) and cut it into 2 cm cubes. Drop it into a saucepan of salted boiling water and cook until a knife slides in with no resistance.
Tip · Drain the celery root for a good long while, or the mash turns runny; put it back over low heat for 1 min to cook off the leftover water.
Prep the apples
While the celery root cooks, peel the 2 apples, remove the seeds and cut them into wedges.
Add the apples
Pull the skillet out of the oven after 20 min, flip the roast, add the apples around it with 10 g of butter (half of the 20 g), then put it back in for the remaining 20 min.
Mash
Drain the celery root well, put it back in the saucepan and mash it with the remaining 10 g of butter and the crème fraîche (10 cl). Add pepper, and salt if needed.
Rest and serve
Take out the roast and cover it with foil for 5 min, then slice it. Serve with the mash and apples.
Tip · Slice the roast across the grain after resting, the meat stays juicier that way.
And there you go, it's readyCheck off every step to celebrate.
The questions you're asking
short answers, numbers you can check
How many calories in a serving?
One serving has about 699 kcal. 15% comes from carbs, 28% from protein and 57% from fat.
26 gCarbs
48 gProtein
44 gFat
Per serving (the dish for 2, divided by 2)
Energy
699 kcal
Protein
48.3 g
Carbs
25.7 g
of which sugars
20.3 g
Fat
44.2 g
of which saturated fat
22.4 g
Fiber
11.2 g
Salt
0.6 g
Worked out ingredient by ingredient with the ANSES Ciqual 2025 table, never written by an AI. It's an estimate: veggie sizes and brands make the numbers vary.
How much does it cost?
About $3.31 a serving, adding up the average prices of the ingredients you need to buy.
≈ $6.61for 2 people
≈ $3.31a serving
Pantry salt, oil and spices aren't counted. Your store and your brands will move the total, but the ballpark is right.
How long does it keep?
2 days in the fridge, in a closed container, once cooled within two hours. After that, into the freezer it goes.
2 daysin the fridge
Yesin the freezer, thaw it in the fridge the day before