Heat a braiser or Dutch oven over medium heat. Add the oil and bacon; cook until the bacon is golden brown and crispy, about 5 minutes. Remove the bacon to a plate, using a slotted spoon.
Turn the heat up to medium-high. Pat the chicken pieces dry with paper towels, and sprinkle all over with the salt. Add the chicken, skin-side down, to the pan and cook until golden brown and crispy, 8 to 10 minutes. Flip and brown on the reverse side, an additional 5 minutes. Remove the chicken to the plate with the bacon.
Add the onions, carrots, garlic and chiles to the pan, and cook an additional 3 minutes, stirring often. Add the allspice and pimenton; cook another 2 minutes. Add the tomato paste; cook, stirring constantly, until fragrant and deepened in color, 2 minutes more. Deglaze the pan with the red wine and simmer for 5 minutes to reduce slightly. Add the chicken broth and then whisk in the chopped chocolate. Nestle in the browned chicken pieces, skin-side down, and sprinkle with the bacon. Reduce the heat to low, cover, and simmer for 35 minutes, turning the chicken pieces halfway through.
Remove the chicken to a platter to rest. Meanwhile, whisk the butter and agave nectar into the sauce. Stir in the peas, then spoon the stew over the chicken pieces.
Recipe courtesy of Giada De Laurentiis