Preheat the water bath to 141°F (60.6°C).
Mix the spices together in a bowl. Salt and pepper the chicken then sprinkle with the spice mixture and seal in a sous vide bag. Place the sous vide bag in the water bath and cook for 2 to 4 hours, until pasteurized.
For more information on the cooking times you can read my detailed article which addresses why is there a range in sous vide cooking times.
Preheat the broiler on an oven.
Remove the stems and seeds from the chile peppers. Discard the stems and half of the seeds, reserving the others for later.
Heat some olive oil in a pan over medium high heat and sauté the deseeded chile peppers for 2 to 3 minutes per side. Remove and place in a blender or food processor with half the chicken stock.
Place some aluminum foil on a sheet pan with raised sides. Add the onion, garlic, tomato, and tomatillo then roast in the oven until they begin to blacken and soften, 15 to 30 minutes. Add them and their juices to the blender containing the chile peppers.
Toast the almonds, pumpkin seeds, sesame seeds, coriander, peppercorns, aniseed, cloves, and the reserved chile pepper seeds in a pan over medium heat until fragrant and just starting to brown, about 2 minutes. Add to the blender along with the raisins and cinnamon.
Once the mixture in the blender has cooled slightly, process it until it becomes a smooth paste, adding water if it is too thick.
Heat the olive oil in a large saucepan with high sides over medium heat. Add the puree from the food processor and cook for 5 minutes, stirring constantly, until it thickens. Reduce the heat to medium low and add the remaining chicken stock as well as the chocolate, honey and vinegar and stir to combine. Simmer the sauce for at least 10 minutes, and up to 50 minutes, while stirring occasionally until it becomes thick but still pourable. Salt and pepper to taste and then remove from the heat.
Take the sous vide bag out of the water and remove the chicken. Dry it off thoroughly using paper towels or a dish cloth. Quickly sear the chicken for 1 to 2 minutes per side, until just browned, then remove from the heat and place onto a plate.
Spoon the mole sauce over the chicken then top with the avocado slices. Sprinkle with the sesame seeds and cilantro then serve.