Pull duck meat from the bones and shred. Discard skin and bones.
Combine the pulled meat, and all of the remaining ingredients, except for the crostini, in the bowl of an electric mixer fitted with the dough hook. Beat at medium speed for about 1 minute, or until everything is well mixed. Or use a food processor, taking care not to puree the mixture or let it turn into a paste. The texture should be like finely chopped meat.
Serve rillette with crostini.
If not using immediately, spoon rillette into ramekins and cover with reserved fat from the duck confit. Store in an airtight container, in the refrigerator for up to 1 week.
Lay the leg portions on a platter, skin side down. Sprinkle with 1 tablespoon of the kosher salt and the black pepper. Place the garlic cloves, bay leaves, and sprigs of thyme on each of 2 leg portions. Lay the remaining 2 leg portions, flesh to flesh, on top. Put the reserved fat from the ducks in the bottom of a glass or plastic container. Top with the sandwiched leg portions. Sprinkle with the remaining 1/8 teaspoon kosher salt. Cover and refrigerate for 12 hours.
Preheat the oven to 200 degrees F.
Remove the duck from the refrigerator. Remove the garlic, bay leaves, thyme, and duck fat and reserve. Rinse the duck with cool water, rubbing off some of the salt and pepper. Pat dry with paper towels.
Put the reserved garlic, bay leaves, thyme, and duck fat in the bottom of an enameled cast iron pot. Sprinkle evenly with the peppercorns and table salt. Lay the duck on top, skin side down. Add the olive oil. Cover and bake for 12 to 14 hours, or until the meat pulls away from the bone.
Remove the duck from the fat. Strain the fat and reserve. To store the duck confit, place the duck leg portions in a container, cover with the reserved cooking fat, and store in the refrigerator. Alternately, pick the meat from the bones and place it in a stoneware container. Cover the meat with a thin layer of some of the strained fat. The duck confit can be stored in the refrigerator for up to one month.
The excess oil can be stored in an airtight container in the refrigerator and used like butter for cooking. The tinge of duck taste in the oil is wonderful.
Preheat oven to 375 degrees F.
Arrange bread slices on a baking sheet and brush generously with olive oil on both sides. Sprinkle lightly with salt and freshly ground black pepper.
Bake for 2 to 4 minutes, or until golden brown and crisp. (Watch carefully while they are baking to make sure they don't burn.)
Recipe courtesy of Emeril Lagasse There's a Chef in My Soup"