In a 9x13 baking dish, whisk together the coconut milk, red curry paste, garlic, ginger, soy sauce, honey, lime juice and vinegar and until silky and smooth.
Layer the bok choy in the baking dish so that it covers the bottom.
Arrange the dumplings in rows on top of the bok choy, allowing them to overlap slightly. Cover the baking dish with foil.
Bake for 20 minutes. Remove the foil and bake for another 10-15 minutes.
Spoon the sauce over the dumplings. Garnish with chopped scallions, sesame seeds and chili oil if desired.