2 onions sweet such as vidalia or walla walla, root ends trimmed
1 tablespoon vegetable oil
Equipment
bowl
frying pan
oven
baking pan
aluminum foil
colander
Directions
Preheat the oven to 35
Put the onions in a small baking dish, root ends down, and rub with oil.
Add 1/2 inch of water to the dish. Cover with foil and bake for about 1 1/2 hours, until tender.
Let cool slightly.
Meanwhile, heat a large skillet.
Add the spinach in batches, tossing until wilted.
Transfer to a colander and squeeze out the water. Coarsely chop the spinach.
In the same skillet, cook the lamb over moderately high heat, breaking it up, until no pink remains, 3 minutes.
Pour off all but 1 tablespoon of the fat and add the ancho chile powder and cinnamon. Cook over moderately high heat, stirring, for 1 minute. Stir in the spinach.
Transfer the lamb filling to a large bowl. Stir in the bread crumbs, Gruyre, 1/4 cup of the beef broth and 1/2 cup of the crushed tomatoes.
Cut 1/2 inch off the top and bottom of the baked onions. Separate the layers, trying not to break them. You will need 10 onion cups: some large, some medium and 2 small. Finely chop enough of the onion scraps to make 1/2 cup; fold into the lamb filling and season with salt and pepper.
Stand the onion cups in a buttered medium baking dish. Season the insides with salt and fill with the lamb.
In a large skillet, combine the cream with the remaining 3/4 cup of beef broth and 1/2 cup of tomatoes and bring to a boil.
Pour the sauce over and around the onions.
In a bowl, combine all of the ingredients. Mound the topping on the onions. Cover with foil and bake for 40 minutes, until hot. Uncover and increase the oven temperature to 42