The deep savoriness of soy sauce helps stability punchy-sweet tomatoes on this very saucy, very straightforward, and very flavorful summery braise. This dish is really one-pot from begin to end, from marinating all through to cooking and serving. The marinade pulls double responsibility right here: It first imbues the hen with the flavors of soy sauce, scorching mustard, garlic, and sure, even a little bit of butter. Then because the hen roasts within the oven, it cooks down right into a beneficiant sauce that begs be soaked up by rice or thick slices of toasted bread.
If you do not have an ovenproof straight-sided skillet or Dutch oven, you may also make this hen on a rimmed baking sheet—merely marinate the hen in a big bowl first.