01 -
Place the chicken breasts in a large bowl with 1 tablespoon of salt. Cover completely with cold water, then refrigerate for at least an hour, though overnight is even better for maximum tenderness.
02 -
Heat your oven to 450°F and position a rack right in the center for even cooking.
03 -
Mix together the remaining teaspoon of salt with the black pepper, garlic powder, onion powder, paprika, and brown sugar if you're using it. This creates a flavorful rub for the chicken.
04 -
Remove the chicken from the brine and pat completely dry with paper towels. Brush each piece with olive oil, then coat evenly with your seasoning mixture. Place in a 9x13 baking dish and bake for about 18 minutes, until the internal temperature hits 165°F. Switch to broil for the last 3 minutes to get that gorgeous golden top.
05 -
While the chicken bakes, heat olive oil in a medium skillet over medium heat. When it's shimmering, add the minced shallot and cook until it becomes translucent and fragrant, about 5 minutes.
06 -
Pour in the white wine and let it bubble and reduce by half, which takes about 3 minutes. Whisk in both mustards until smooth, then gradually add the chicken broth and cream while stirring constantly to prevent lumps.
07 -
Mash the soft butter and flour together in a small bowl to make a smooth paste. Whisk this into your sauce and bring to a gentle simmer. Keep stirring until the sauce coats the back of a spoon nicely, about 4 minutes. Taste and adjust seasoning if needed.
08 -
Slice the chicken and arrange on plates. Generously spoon the warm mustard cream sauce over the top and finish with a sprinkle of fresh parsley for a pop of color and freshness.