Slightly flatten the chicken tenders with a meat tenderizer. Make sure all of the pieces are the same thickness. Combine all of the marinade ingredients except for the chicken in a bowl. Season with salt and pepper. Add the chicken and make sure all the pieces are well coated. Seal the bowl and allow to marinate for at least 4 hours and up to 6 hours.
Prepare the wooden skewers by placing them in water for at least 30 minutes. This will prevent the skewers from burning while you cook them. Take a marinated chicken tender and skewer the piece with a wooden skewer. Try to thread one chicken tender onto each skewer. Repeat until all the chicken tenders are done.
Heat a grill pan over heat. Spray with nonstick spray. Place the chicken tenders on the pan and cook for 4 minutes. Flip and cook for another 2-3 minutes, or until the chicken registers at a temperature of 165°F. Serve with peanut sauce.
