Whisk together the orange juice, lime juice, chile powder, and garlic in a non-reactive large baking dish. Add chicken cubes and turn to coat. Cover the chicken and refrigerate for 4 to 6 hours or overnight.
Prepare a charcoal or wood fire and let it burn down to embers, or preheat the broiler.
Thread each piece of chicken onto a skewer. Season with salt and grill for about 3 minutes on each side, or until cooked through completely. Place each skewer in a Bibb lettuce leaf, drizzle with Peanut-Red Chile Mole Sauce, and garnish with cilantro and mint.
Peanut-Red Chile Mole Sauce:
Yield:approximately 9 cups
Heat oil in a large saucepan over medium-high heat. Add the onions and garlic and cook until soft. Add the mango, peanuts, sesame seeds, ginger, allspice, and cloves and cook for 10 minutes, stirring often. Add the cinnamon, chiles, and stock, and season with salt and pepper; cook for 1 hour. Add the tortillas and cook for another hour.
Remove cinnamon sticks and carefully ladle the hot mixture, in batches, into a blender* and blend until smooth. Strain the sauce through a fine mesh strainer into a clean saucepan and cook until slightly thickened.
*When blending hot liquids: Remove liquid from the heat and allow to cool for at least 5 minutes. Transfer liquid to a blender or food processor and fill it no more than halfway. If using a blender, release one corner of the lid. This prevents the vacuum effect that creates heat explosions. Place a towel over the top of the machine, pulse a few times then process on high speed until smooth.