I’m not sure which parent I’m indebted to for this recipe. Probably both. When my mother met my father, she was neither a practiced diner nor an experienced cook. To rectify the situation and satisfy his own culinary demands, my father gave my mother a copy of Julia Child’s Mastering the Art of French Cooking as soon as they were married. When I was growing up, this was one of my favorite recipes from that book. I served my own interpretation of the dish at one of our first Sunday suppers at Lucques. First I browned the chicken thighs and slathered them in a quick-to-make mustard-and-breadcrumb combo and then roasted them on a bed of braised leeks. The chicken emerges from the oven crisp and brown, while the leeks become tender, and permeated with the flavors of the chicken.
The chicken is best when it marinates overnight. The leeks need to be braised ahead; you could even braise them the day before. You can also sear the chicken thighs, grind the breadcrumbs, and make the mustard mixture a few hours in advance. Then the only
