Rinse four fresh chicken breasts and trim any excess fat off. Place olive oil in frying pan and heat to medium high. Season chicken with salt and pepper to taste and place in pan. Cook thoroughly on both sides, 10 to 12 minutes. Remove from pan and plate to cool.
In large microwave-safe bowl, combine peanut butter, soy sauce, sesame oil, and Sriracha and stir until smooth. Heat for approximately 20 seconds, and remove from microwave. Stir peanut butter spread until smooth.
Lightly toast 4 baguettes, split in half (lengthwise, for sandwich). Spread peanut butter sauce evenly on face up side of both slices bread. Slice cooled chicken breasts into thin slices, and evenly distribute on bottom slices of bread. Top chicken with pepper, carrots, cilantro, onions, peanuts.
Spread jam on top of peanut butter on top slice of bread. Top sandwich with second slice of bread.