Step 1Heat the oven to 375 degrees. Season the duck legs well on both sides with salt and pepper to taste. Arrange them skin side up in a shallow baking dish just large enough to hold them all comfortably. Roast 1 hour.
Step 2While the legs cook, bring 4 cups of water and 1 teaspoon salt to a rolling boil in a heavy saucepan. Stir in the grits and minced garlic and stir until smooth. Lower the heat and simmer, stirring often, until the grits are thickened and cooked through adding more water if the mixture gets too thick and dry (1 to 1 1/2 hours for Anson Mills grits). Hold in a warm spot.
Step 3Combine the red wine, 1 1/2 tablespoons Worcestershire sauce, the crushed garlic, bay leaf, thyme and the chile in a saucepan and heat to a simmer.
Step 4Drain off the fat from the legs, reserving 1 tablespoon. Pour the wine mixture around the legs so that the meat is immersed but the skin is exposed. Return the legs to a rack set in the upper third of the oven and roast 30 minutes.
Step 5When the legs are cooked, remove from the oven and transfer them to a platter and keep warm.
Step 6Heat the reserved fat in a saucepan and saute the onion until soft, about 10 minutes. Stir in the tomatoes, maple syrup, mustard and the remaining Worcestershire sauce. Pour the braising liquid into the saucepan, raise the heat and cook, stirring occasionally, for 10 minutes. (Makes one-half cup sauce.)
Step 7Arrange 1 or 2 duck legs on each serving plate. Spoon the grits alongside. Strain the sauce, pressing on the solids to extract the liquid. Remove the excess fat from the surface. Ladle a little sauce over the duck and grits, passing the remainder at the table.