Mustard Chicken Thighs with Buttered Noodles

Instructions

1. Set your oven to 350°F. This moderate temperature will gently braise the chicken without drying it out.
2. Pat the chicken thighs completely dry with paper towels — any moisture will interfere with browning. Season generously on both sides with salt and pepper.
3. Warm 1 tablespoon olive oil in a heavy Dutch oven over medium-high heat until it shimmers. Brown the thighs in batches, about 4 minutes per side, until deep golden. Don't overcrowd the pan or they'll steam instead of sear. Transfer to a plate.
4. Add the remaining tablespoon of oil to the same Dutch oven. Toss in the chopped onions and cook, stirring occasionally, until they're translucent and starting to caramelize at the edges.

   ⏱ 5 min
5. Scatter in the quartered mushrooms and let them cook undisturbed for a minute to get some color, then stir and continue cooking until they've released their moisture and started to brown.

   ⏱ 4 min
6. Make a well in the center and add the minced garlic. Stir constantly — garlic burns quickly and will turn bitter if left too long.

   ⏱ 2 min
7. Add the chopped tomato and flour, stirring everything together. Keep cooking and stirring to cook out the raw flour taste — the mixture should look slightly thickened and smell toasty.

   ⏱ 3 min
8. Sprinkle in the tarragon, then increase the heat and pour in the white wine. Let it bubble vigorously to cook off the harsh alcohol and concentrate the flavors.

   ⏱ 1 min 30 sec
9. Nestle the browned chicken thighs back into the Dutch oven. Pour in enough chicken stock to come halfway up the sides of the meat — this partial submersion keeps the chicken moist while allowing the top to stay golden. Cover and slide into the oven for 45 minutes, removing the lid after 20 minutes to let the liquid reduce slightly.

   ⏱ 45 min
10. Carefully lift the chicken out of the Dutch oven and set aside on a clean plate. Whisk the Dijon mustard and sour cream directly into the hot braising liquid until completely smooth — the residual heat will warm everything through without curdling.
11. Return the chicken to the creamy mustard sauce and let everything sit together off the heat. This resting time allows the flavors to marry and the chicken to absorb some of the sauce.

    ⏱ 5 min
12. Bring a large pot of water to a rolling boil. Drop in the bouillon cubes and stir until dissolved, then add the egg noodles. Cook according to package directions until just tender. Reserve the colander you'll drain them in.
13. Drain the noodles in the colander, but here's the key step: nest that colander right back into the empty pot so the residual pasta water drips down. This starchy water is liquid gold for making the butter sauce silky. After a minute, lift out the colander.
14. Working quickly while everything's hot, add the softened butter and sour cream to the pot with the pasta water. Stir until the butter melts into a creamy emulsion, then fold in the parsley and drained noodles. Season with salt and pepper, tossing until every strand is coated.
15. Spoon the buttered noodles into bowls and top with the chicken thighs and their luxurious mustard sauce. Serve immediately while the sauce is still glossy and warm.